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Man Pages
ROFI-THEME(5) FreeBSD File Formats Manual ROFI-THEME(5)

rofi-theme - Rofi theme format files

By default, rofi loads the default theme. This theme is always loaded. In the default (always loaded) configuration it does: 

@theme "default"

To unload the default theme, and load another theme, add @theme to your config.rasi file.

If you have a theme loaded by @theme or use the default theme, you can tweak it by adding overriding elements at the end of your config.rasi file.

For the difference between @import and @theme see the Multiple file handling section in this manpage.

To see the default theme, run the following command:

rofi -no-config -dump-theme

The need for a new theme format was motivated by the fact that the way rofi handled widgets has changed. From a very static drawing of lines and text to a nice structured form of packing widgets. This change made it possible to provide a more flexible theme framework. The old theme format and config file are not flexible enough to expose these options in a user-friendly way. Therefore, a new file format has been created, replacing the old one.

The encoding of the file is utf-8. Both unix (\n) and windows (\r\n) newlines format are supported. But unix is preferred.

C and C++ file comments are supported.

  • Anything after // and before a newline is considered a comment.
  • Everything between /* and */ is a comment.

Comments can be nested and the C comments can be inline.

The following is valid:

// Magic comment.
property: /* comment */ value;

However, this is not:

prop/*comment*/erty: value;

White space and newlines, like comments, are ignored by the parser.

This:

property: name;

Is identical to:

     property             :
name
;

The preferred file extension for the new theme format is rasi. This is an abbreviation for rofi advanced style information.

Each element has a section with defined properties. Global properties can be defined in section * { }. Sub-section names begin with a hash symbol #.

It is advised to define the global properties section on top of the file to make inheritance of properties clearer.

/* Global properties section */
* {
    // list of properties
}
/* Element theme section. */
{element path} {
    // list of properties
}
{elements... } {
    // list of properties
}

If there are multiple sections with the same name, they are merged. Duplicate properties are overwritten and the last parsed entry kept.

A theme can have one or more global properties sections. If there is more than one, they will be merged.

The global properties section denotes the defaults for each element. Each property of this section can be referenced with @{identifier} (See Properties section)

A global properties section is indicated with a * as element path.

A theme can have multiple element theme sections.

The element path can consist of multiple names separated by whitespace or dots. Each element may contain any number of letters, numbers and -'s. The first element in the element path should always start with a #. Multiple elements can be specified by a ,.

This is a valid element name:

element normal.normal {
    background-color: blue;
}
button {
    background-color: blue;
}

And is identical to:

element normal normal, button {
    background-color: blue;
}

Each section inherits the global properties. Properties can be explicitly inherited from their parent with the inherit keyword. In the following example:

window {
 a: 1;
 b: 2;
 children: [ mainbox ];
}
mainbox {
    a: inherit;
    b: 4;
    c: 8;
}

The element mainbox will have the following set of properties (if mainbox is a child of window):

a: 1;
b: 4;
c: 8;

If multiple sections are defined with the same name, they are merged by the parser. If multiple properties with the same name are defined in one section, the last encountered property is used.

The properties in a section consist of: 

{identifier}: {value};

Both fields are mandatory for a property.

The identifier names the specified property. Identifiers can consist of any combination of numbers, letters and '-'. It must not contain any whitespace. The structure of the value defines the type of the property. The current parser does not define or enforce a certain type of a particular identifier. When used, values with the wrong type that cannot be converted are ignored.

The current theme format supports different types:

  • a string
  • an integer number
  • a fractional number
  • a boolean value
  • a color
  • image
  • text style
  • line style
  • a distance
  • a padding
  • a border
  • a position
  • a reference
  • an orientation
  • a cursor
  • a list of keywords
  • an array of values
  • an environment variable
  • Inherit

Some of these types are a combination of other types.

•
Format: "[:print:]+"

A string is always surrounded by double quotes ("). Between the quotes there can be any printable character.

For example:

font: "Awasome 12";

The string must be valid UTF-8.

•
Format: [-+]?[:digit:]+

An integer may contain any number.

For examples:

lines: 12;

•
Format: [-+]?[:digit:]+(\.[:digit:]+)?

A real is an integer with an optional fraction.

For example:

real: 3.4;

The following is not valid: .3, 3. or scientific notation: 3.4e-3.

•
Format: (true|false)

Boolean value is either true or false. This is case-sensitive.

For example:

dynamic: false;

rofi support a limited set of background-image formats.

  • Format: url("path to image");
  • Format: url("path to image", scale); where scale is: none, both, width, height
  • Format: linear-gradient(stop color,stop1, color, stop2 color, ...);
  • Format: linear-gradient(to direction, stop color,stop1, color, stop2 color, ...); where direction is: top,left,right,bottom.
  • Format: linear-gradient(angle, stop color,stop1, color, stop2 color, ...); Angle in deg,rad,grad (as used in color).

Where the path is a string, and stop color is of type color.

rofi supports the color formats as specified in the CSS standard (1,2,3 and some of CSS 4)

  • Format: #{HEX}{3} (rgb)
  • Format: #{HEX}{4} (rgba)
  • Format: #{HEX}{6} (rrggbb)
  • Format: #{HEX}{8} (rrggbbaa)
  • Format: rgb[a]({INTEGER},{INTEGER},{INTEGER}[, {PERCENTAGE}])
  • Format: rgb[a]({INTEGER}%,{INTEGER}%,{INTEGER}%[, {PERCENTAGE}])
  • Format: hsl[a]( {ANGLE}, {PERCENTAGE}, {PERCENTAGE} [, {PERCENTAGE}])
  • Format: hwb[a]( {ANGLE}, {PERCENTAGE}, {PERCENTAGE} [, {PERCENTAGE}])
  • Format: cmyk( {PERCENTAGE}, {PERCENTAGE}, {PERCENTAGE}, {PERCENTAGE} [, {PERCENTAGE} ])
  • Format: {named-color} [ / {PERCENTAGE} ]

The white-space format proposed in CSS4 is also supported.

The different values are:

  • {HEX} is a hexadecimal number ('0-9a-f' case insensitive).
  • {INTEGER} value can be between 0 and 255 or 0-100 when representing percentage.
  • {ANGLE} is the angle on the color wheel, can be in deg, rad, grad or turn. When no unit is specified, degrees is assumed.
  • {PERCENTAGE} can be between 0-1.0, or 0%-100%

{named-color} is one of the following colors:

AliceBlue, AntiqueWhite, Aqua, Aquamarine, Azure, Beige, Bisque, Black, BlanchedAlmond, Blue, BlueViolet, Brown, BurlyWood, CadetBlue, Chartreuse, Chocolate, Coral, CornflowerBlue, Cornsilk, Crimson, Cyan, DarkBlue, DarkCyan, DarkGoldenRod, DarkGray, DarkGrey, DarkGreen, DarkKhaki, DarkMagenta, DarkOliveGreen, DarkOrange, DarkOrchid, DarkRed, DarkSalmon, DarkSeaGreen, DarkSlateBlue, DarkSlateGray, DarkSlateGrey, DarkTurquoise, DarkViolet, DeepPink, DeepSkyBlue, DimGray, DimGrey, DodgerBlue, FireBrick, FloralWhite, ForestGreen, Fuchsia, Gainsboro, GhostWhite, Gold, GoldenRod, Gray, Grey, Green, GreenYellow, HoneyDew, HotPink, IndianRed, Indigo, Ivory, Khaki, Lavender, LavenderBlush, LawnGreen, LemonChiffon, LightBlue, LightCoral, LightCyan, LightGoldenRodYellow, LightGray, LightGrey, LightGreen, LightPink, LightSalmon, LightSeaGreen, LightSkyBlue, LightSlateGray, LightSlateGrey, LightSteelBlue, LightYellow, Lime, LimeGreen, Linen, Magenta, Maroon, MediumAquaMarine, MediumBlue, MediumOrchid, MediumPurple, MediumSeaGreen, MediumSlateBlue, MediumSpringGreen, MediumTurquoise, MediumVioletRed, MidnightBlue, MintCream, MistyRose, Moccasin, NavajoWhite, Navy, OldLace, Olive, OliveDrab, Orange, OrangeRed, Orchid, PaleGoldenRod, PaleGreen, PaleTurquoise, PaleVioletRed, PapayaWhip, PeachPuff, Peru, Pink, Plum, PowderBlue, Purple, RebeccaPurple, Red, RosyBrown, RoyalBlue, SaddleBrown, Salmon, SandyBrown, SeaGreen, SeaShell, Sienna, Silver, SkyBlue, SlateBlue, SlateGray, SlateGrey, Snow, SpringGreen, SteelBlue, Tan, Teal, Thistle, Tomato, Turquoise, Violet, Wheat, White, WhiteSmoke, Yellow, YellowGreen,transparent

For example:

background-color: #FF0000;
border-color: rgba(0,0,1, 0.5);
text-color: SeaGreen;

or

background-color: transparent;
text-color: Black;

•
Format: (bold|italic|underline|strikethrough|none)

Text style indicates how the highlighted text is emphasized. None indicates that no emphasis should be applied.

  • bold: make the text thicker then the surrounding text.
  • italic: put the highlighted text in script type (slanted).
  • underline: put a line under the highlighted text.
  • strikethrough: put a line through the highlighted text.

•
Format: (dash|solid)

Indicates how a line should be drawn. It currently supports: * dash: a dashed line, where the gap is the same width as the dash * solid: a solid line

  • Format: {Integer}px
  • Format: {Real}em
  • Format: {Real}ch
  • Format: {Real}%
  • Format: {Integer}mm

A distance can be specified in 3 different units:

  • px: Screen pixels.
  • em: Relative to text height.
  • ch: Relative to width of a single number.
  • mm: Actual size in millimeters (based on dpi).
  • %: Percentage of the monitor size.

Distances used in the horizontal direction use the monitor width. Distances in the vertical direction use the monitor height. For example:

   padding: 10%;

On a full-HD (1920x1080) monitor, it defines a padding of 192 pixels on the left and right side and 108 pixels on the top and bottom.

Rofi supports some maths in calculating sizes. For this it uses the CSS syntax: 

width: calc( 100% - 37px );

It supports the following operations:

  • + : Add
  • - : Subtract
  • / : Divide
  • * : Multiply
  • % : Multiply
  • min : Minimum of l or rvalue;
  • max : Maximum of l or rvalue;
  • floor : Round down lvalue to the next multiple of rvalue
  • ceil : Round up lvalue to the next multiple of rvalue
  • round : Round lvalue to the next multiple of rvalue

It uses the C precedence ordering.

  • Format: {Integer}
  • Format: {Distance}
  • Format: {Distance} {Distance}
  • Format: {Distance} {Distance} {Distance}
  • Format: {Distance} {Distance} {Distance} {Distance}

If no unit is specified, pixels are assumed.

The different number of fields in the formats are parsed like:

  • 1 field: all
  • 2 fields: topbottom leftright
  • 3 fields: top, leftright, bottom
  • 4 fields: top, right, bottom, left

  • Format: {Integer}
  • Format: {Distance}
  • Format: {Distance} {Distance}
  • Format: {Distance} {Distance} {Distance}
  • Format: {Distance} {Distance} {Distance} {Distance}
  • Format: {Distance} {Line style}
  • Format: {Distance} {Line style} {Distance} {Line style}
  • Format: {Distance} {Line style} {Distance} {Line style} {Distance} {Line style}
  • Format: {Distance} {Line style} {Distance} {Line style} {Distance} {Line style} {Distance} {Line style}

Borders are identical to padding, except that each distance field has a line style property.

When no unit is specified, pixels are assumed.

Indicate a place on the window/monitor.

•

Format: (center|east|north|west|south|north east|north west|south west|south east)

north west   |    north    |  north east
-------------|-------------|------------
  west   |   center    |  east
-------------|-------------|------------
south west   |    south    |  south east

It is possible to hide widgets:

inputbar { enabled: false; }

•
Format: @{PROPERTY NAME}

A reference can point to another reference. Currently, the maximum number of redirects is 20. A property always refers to another property. It cannot be used for a subpart of the property. For example, this is not valid:

highlight: bold @pink;

But this is:

* {
    myhigh: bold #FAA;
}
window {
    highlight: @myhigh;
}

•
Format: var(PROPERTY NAME, DEFAULT)

A reference can point to another reference. Currently, the maximum number of redirects is 20. A property always refers to another property. It cannot be used for a subpart of the property.

Example:

window {
    width: var( width, 30%);
}

If the property width is set globally (*{}) that value is used, if the property width is not set, the default value is used.

•
Format: (horizontal|vertical)

Specify the orientation of the widget.

•
Format: (default|pointer|text)

Specify the type of mouse cursor that is set when the mouse pointer is over the widget.

•
Format: [ keyword, keyword ]

A list starts with a '[' and ends with a ']'. The entries in the list are comma-separated. The keyword in the list refers to an widget name.

•
Format: [ value, value, ... ]

An list starts with a '[' and ends with a ']'. The entries in the list are comma-separated.

•
Format: ${:alnum:}

This will parse the environment variable as the property value. (that then can be any of the above types). The environment variable should be an alphanumeric string without white-space.

* {
    background-color: ${BG};
}

•
Format: env(ENVIRONMENT, default)

This will parse the environment variable as the property value. (that then can be any of the above types). The environment variable should be an alphanumeric string without white-space. If the environment value is not found, the default value is used.

window {
    width: env(WIDTH, 40%);
}

If environment WIDTH is set, then that value is parsed, otherwise the default value (40%).

•
Format: inherit

Inherits the property from its parent widget.

mainbox {
    border-color: inherit;
}

Element paths exists of two parts, the first part refers to the actual widget by name. Some widgets have an extra state.

For example:

element selected {
}

Here element selected is the name of the widget, selected is the state of the widget.

The difference between dots and spaces is purely cosmetic. These are all the same:

element .selected {
element.selected {
}
element selected {
}

The current widgets available in rofi:

•
window

  • overlay: the overlay widget.
  • mainbox: The mainbox box.
  • inputbar: The input bar box.

  • box: the horizontal @box packing the widgets
  • case-indicator: the case/sort indicator @textbox
  • prompt: the prompt @textbox
  • entry: the main entry @textbox
  • num-rows: Shows the total number of rows.
  • num-filtered-rows: Shows the total number of rows after filtering.

•
listview: The listview.

  • scrollbar: the listview scrollbar
  • element: a box in the listview holding the entries

  • element-icon: the widget in the listview's entry showing the (optional) icon
  • element-index: the widget in the listview's entry keybindable index (1,2,3..0)
  • element-text: the widget in the listview's entry showing the text.

•
mode-switcher: the main horizontal @box packing the buttons.

•
button: the buttons @textbox for each mode

•
message: The container holding the textbox.

•
textbox: the message textbox

Note that these path names match the default theme. Themes that provide a custom layout will have different elements, and structure.

State: State of widget

Optional flag(s) indicating state of the widget, used for theming.

These are appended after the name or class of the widget.

button selected.normal { }

element selected.urgent { }

Currently only the entrybox and scrollbar have states:

{visible modifier}.{state}

Where visible modifier can be: * normal: no modification * selected: the entry is selected/highlighted by user * alternate: the entry is at an alternating row (uneven row)

Where state is: * normal: no modification * urgent: this entry is marked urgent * active: this entry is marked active

These can be mixed.

Example:

nametotextbox selected.active {
    background-color: #003642;
    text-color: #008ed4;
}

Sets all selected textboxes marked active to the given text and background color. Note that a state modifies the original element, it therefore contains all the properties of that element.

The scrollbar uses the handle state when drawing the small scrollbar handle. This allows the colors used for drawing the handle to be set independently.

The following properties are currently supported:

  • enabled: enable/disable the widget
  • padding: padding Padding on the inside of the widget
  • margin: padding Margin on the outside of the widget
  • border: border Border around the widget (between padding and margin)/
  • border-radius: padding Sets a radius on the corners of the borders.
  • background-color: color Background color
  • background-image: image Background image
  • border-color: color Color of the border
  • cursor: cursor Type of mouse cursor that is set when the mouse pointer is hovered over the widget.

•

font: string The font used in the window

•

transparency: string Indicating if transparency should be used and what type: real - True transparency. Only works with a compositor. background - Take a screenshot of the background image and use that. screenshot - Take a screenshot of the screen and use that. Path to png file - Use an image.

•

location: position The place of the anchor on the monitor

•

anchor: anchor The anchor position on the window

•

fullscreen: boolean Window is fullscreen.

•

width: distance The width of the window

•

x-offset: distance

•

y-offset: distance The offset of the window to the anchor point, allowing you to push the window left/right/up/down

  • background-color: color
  • handle-width: distance
  • handle-color: color
  • border-color: color

  • orientation: orientation Set the direction the elements are packed.
  • spacing: distance Distance between the packed elements.

  • background-color: color
  • border-color: the color used for the border around the widget.
  • font: the font used by this textbox (string).
  • str: the string to display by this textbox (string).
  • vertical-align: Vertical alignment of the text. A number between 0 (top) and 1 (bottom).
  • horizontal-align: Horizontal alignment of the text. A number between 0 (left) and 1 (right).
  • text-color: the text color to use.
  • highlight: text style {color}. color is optional, multiple highlight styles can be added like: bold underline italic #000000; This option is only available on the element-text widget.
  • width: override the desired width for the textbox.
  • content: Set the displayed text (String).
  • placeholder: Set the displayed text (String) when nothing is entered.
  • placeholder-color: Color of the placeholder text.
  • blink: Enable/Disable blinking on an input textbox (Boolean).
  • markup: Force markup on, beware that only valid pango markup strings are shown.
  • tab-stops: array of distances Set the location of tab stops by their distance from the beginning of the line. Each distance should be greater than the previous one. The text appears to the right of the tab stop position (other alignments are not supported yet).

  • columns: integer Number of columns to show (at least 1)
  • fixed-height: boolean Always show lines rows, even if fewer elements are available.
  • dynamic: boolean True if the size should change when filtering the list, False if it should keep the original height.
  • scrollbar: boolean If the scrollbar should be enabled/disabled.
  • scrollbar-width: distance Width of the scrollbar
  • cycle: boolean When navigating, it should wrap around
  • spacing: distance Spacing between the elements (both vertical and horizontal)
  • lines: integer Number of rows to show in the list view.
  • layout: orientation Indicate how elements are stacked. Horizontal implements the dmenu style.
  • reverse: boolean Reverse the ordering (top down to bottom up).
  • fixed-columns: boolean Do not reduce the number of columns shown when number of visible elements is not enough to fill them all.

Each element is a box called element. Each element can contain an element-icon and element-text.

The element-text widget in the listview is the one used to show the text. On this widget set the highlight property (only place this property is used) to change the style of highlighting. The highlight property consist of the text-style property and a color.

To disable highlighting:

  element-text {
    highlight: None;
  }

To set to red underlined:

  element-text {
    highlight: underline red;
  }

The new format allows the layout of the rofi window to be tweaked extensively. For each widget, the themer can specify padding, margin, border, font, and more. It even allows, as an advanced feature, to pack widgets in a custom structure.

The whole view is made out of boxes that pack other boxes or widgets. The box can be vertical or horizontal. This is loosely inspired by GTK ⟨http://gtk.org/⟩.

The current layout of rofi is structured as follows:

|------------------------------------------------------------------------------------|
| window {BOX:vertical}                                                              |
| |-------------------------------------------------------------------------------|  |
| | mainbox  {BOX:vertical}                                                       |  |
| | |---------------------------------------------------------------------------| |  |
| | | inputbar {BOX:horizontal}                                                 | |  |
| | | |---------| |-| |---------------------------------|---| |---| |---| |---| | |  |
| | | | prompt  | |:| | entry                           |#fr| | / | |#ns| |ci | | |  |
| | | |---------| |_| |---------------------------------|---| |---| |---| |---| | |  |
| | |---------------------------------------------------------------------------| |  |
| |                                                                               |  |
| | |---------------------------------------------------------------------------| |  |
| | | message                                                                   | |  |
| | | |-----------------------------------------------------------------------| | |  |
| | | | textbox                                                               | | |  |
| | | |-----------------------------------------------------------------------| | |  |
| | |---------------------------------------------------------------------------| |  |
| |                                                                               |  |
| | |-----------------------------------------------------------------------------|  |
| | | listview                                                                    |  |
| | | |------------------------------------------------------------------------]  |  |
| | | | element                                                                |  |  |
| | | | |-----------------| |------------------------------------------------] |  |  |
| | | | |element-icon     | |element-text                                    | |  |  |
| | | | |-----------------| |------------------------------------------------| |  |  |
| | | |------------------------------------------------------------------------]  |  |
| | |-----------------------------------------------------------------------------|  |
| |                                                                               |  |
| | |---------------------------------------------------------------------------| |  |
| | |  mode-switcher {BOX:horizontal}                                           | |  |
| | | |---------------|   |---------------|  |--------------| |---------------| | |  |
| | | | Button        |   | Button        |  | Button       | | Button        | | |  |
| | | |---------------|   |---------------|  |--------------| |---------------| | |  |
| | |---------------------------------------------------------------------------| |  |
| |-------------------------------------------------------------------------------|  |
|------------------------------------------------------------------------------------|

  • ci is the case-indicator
  • fr is the num-filtered-rows
  • ns is the num-rows 

|-----------------------------------------------------------------------------------|
| window {BOX:vertical}                                                             |
| |------------------------------------------------------------------------------|  |
| | error-message {BOX:vertical}                                                 |  |
| | |-------------------------------------------------------------------------|  |  |
| | | textbox                                                                 |  |  |
| | |-------------------------------------------------------------------------|  |  |
| |------------------------------------------------------------------------------|  |
|-----------------------------------------------------------------------------------|

The layout of rofi can be tweaked by packing the 'fixed' widgets in a custom structure.

The following widgets are fixed, as they provide core rofi functionality:

  • prompt
  • entry
  • overlay
  • case-indicator
  • message
  • listview
  • mode-switcher
  • num-rows
  • num-filtered-rows

The following keywords are defined and can be used to automatically pack a subset of the widgets. These are used in the default theme as depicted in the figure above.

  • mainbox Packs: inputbar, message, listview, mode-switcher
  • inputbar Packs: prompt,entry,case-indicator

Any widget name starting with textbox is a textbox widget, others are box widgets and can pack other widgets.

There are several special widgets that can be used by prefixing the name of the widget:

This is a read-only textbox widget. The displayed string can be set with content.

Example:

textbox-custom {
  expand: false;
  content: "My Message";
}

This is an icon widget. The displayed icon can be set with filename and size with size. If the property action is set, it acts as a button. action can be set to a keybinding name and completes that action. (see rofi -show keys for a list).

If the squared property is set to false the widget height and width are not forced to be equal.

Example:

icon-paste {
    expand: false;
    filename: "gtk-paste";
    size: 24;
    vertical-align: 0.5;
    action: "kb-primary-paste";
}

This is a textbox widget that can have a 'clickable' action. The action can be set to: keybinding: accepts a keybinding name and completes that action. (see rofi -show keys for a list). 

button-paste {
    expand: false;
    content: "My Clickable Message";
    vertical-align: 0.5;
    action: "kb-primary-paste";
}

To specify children, set the children property (this always happens on the box child, see example below): 

inputbar {
  children: [prompt,entry,overlay,case-indicator];
}

The theme needs to be updated to match the hierarchy specified.

Below is an example of a theme emulating dmenu:

* {
    background-color:      Black;
    text-color:            White;
    border-color:          White;
    font:            "Times New Roman 12";
}
window {
    anchor:     north;
    location:   north;
    width:      100%;
    padding:    4px;
    children:   [ horibox ];
}
horibox {
    orientation: horizontal;
    children:   [ prompt, entry, listview ];
}
listview {
    layout:     horizontal;
    spacing:    5px;
    lines:      10;
}
entry {
    expand:     false;
    width:      10em;
}
element {
    padding: 0px 2px;
}
element selected {
    background-color: SteelBlue;
}

Just like CSS, rofi uses the box model for each widget. 

|-------------------------------------------------------------------|
| margin                                                            |
|  |-------------------------------------------------------------|  |
|  | border                                                      |  |
|  | |---------------------------------------------------------| |  |
|  | | padding                                                 | |  |
|  | | |-----------------------------------------------------| | |  |
|  | | | content                                             | | |  |
|  | | |-----------------------------------------------------| | |  |
|  | |---------------------------------------------------------| |  |
|  |-------------------------------------------------------------|  |
|-------------------------------------------------------------------|

Explanation of the different parts:

  • Content - The content of the widget.
  • Padding - Clears an area around the widget. The padding shows the background color of the widget.
  • Border - A border that goes around the padding and content. The border use the border-color of the widget.
  • Margin - Clears an area outside the border. The margin is transparent.

The box model allows us to add a border around elements, and to define space between elements.

The size of each margin, border, and padding can be set. For the border, a linestyle and radius can be set.

Widgets that can pack more then one child widget (currently box and listview) have the spacing property. This property sets the distance between the packed widgets (both horizontally and vertically). 

|---------------------------------------|
|  |--------| s |--------| s |-------|  |
|  | child  | p | child  | p | child |  |
|  |        | a |        | a |       |  |
|  |        | c |        | c |       |  |
|  |        | i |        | i |       |  |
|  |        | n |        | n |       |  |
|  |--------| g |--------| g |-------|  |
|---------------------------------------|

More dynamic spacing can be achieved by adding dummy widgets, for example to make one widget centered: 

|----------------------------------------------------|
|  |---------------|  |--------|  |---------------|  |
|  | dummy         |  | child  |  | dummy         |  |
|  | expand: true; |  |        |  | expand: true; |  |
|  |               |  |        |  |               |  |
|  |               |  |        |  |               |  |
|  |               |  |        |  |               |  |
|  |---------------|  |--------|  |---------------|  |
|----------------------------------------------------|

If both dummy widgets are set to expand, child will be centered. Depending on the expand flag of child the remaining space will be equally divided between both dummy and child widget (expand enabled), or both dummy widgets (expand disabled).

To get debug information from the parser, run rofi like: 

G_MESSAGES_DEBUG=Parser rofi -show run

Syntax errors are shown in a popup and printed out to command line with the above command.

To see the elements queried during running, run:

G_MESSAGES_DEBUG=Theme rofi -show run

To test minor changes, part of the theme can be passed on the command line, for example to set it to full-screen:

rofi -theme-str 'window { fullscreen:true;}' -show run

Another syntax to modify theme properties is:

rofi -theme+window+fullscreen true -show run

To print the current theme, run:

rofi -dump-theme

Parts of the theme can be conditionally loaded, like the CSS @media option. 

@media ( min-width: 120 ) {
}

It supports the following keys as constraint:

  • min-width: load when width is bigger or equal then value.
  • max-width: load when width is smaller then value.
  • min-height: load when height is bigger or equal then value.
  • max-height: load when height is smaller then value.
  • min-aspect-ratio load when aspect ratio is over value.
  • max-aspect-ratio: load when aspect ratio is under value.
  • monitor-id: The monitor id, see rofi -help for id's.

@media takes an integer number or a fraction, for integer number px can be added.

@media ( min-width: 120 px ) {
}

Rofi uses pango ⟨https://pango.gnome.org/⟩ for font rendering. The font should be specified in a format that pango understands. This normally is the font name followed by the font size. For example: 

mono 18

Or

FontAwesome 22

The rasi file format offers two methods of including other files. This can be used to modify existing themes, or have multiple variations on a theme.

  • import: Import and parse a second file.
  • theme: Discard theme, and load file as a fresh theme.

Syntax:

@import "myfile"
@theme "mytheme"

The specified file can either by name, filename,full path.

If a filename is provided, it will try to resolve it in the following order:

  • ${XDG_CONFIG_HOME}/rofi/themes/
  • ${XDG_CONFIG_HOME}/rofi/
  • ${XDG_DATA_HOME}/rofi/themes/
  • ${INSTALL PREFIX}/share/rofi/themes/

A name is resolved as a filename by appending the .rasi extension.

Several examples are installed together with rofi. These can be found in {datadir}/rofi/themes/, where {datadir} is the install path of rofi data. When installed using a package manager, this is usually: /usr/share/.

rofi(1), rofi-script(5), rofi-theme-selector(1)
rofi-theme
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