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< ol class = "chapter" > < li class = "chapter-item expanded " > < a href = "install.html" > < strong aria-hidden = "true" > 1.< / strong > Installation< / a > < / li > < li class = "chapter-item expanded " > < a href = "usage.html" > < strong aria-hidden = "true" > 2.< / strong > Usage< / a > < / li > < li class = "chapter-item expanded " > < a href = "from-vim.html" > < strong aria-hidden = "true" > 3.< / strong > Migrating from Vim< / a > < / li > < li class = "chapter-item expanded " > < a href = "configuration.html" > < strong aria-hidden = "true" > 4.< / strong > Configuration< / a > < / li > < li > < ol class = "section" > < li class = "chapter-item expanded " > < a href = "themes.html" class = "active" > < strong aria-hidden = "true" > 4.1.< / strong > Themes< / a > < / li > < li class = "chapter-item expanded " > < a href = "keymap.html" > < strong aria-hidden = "true" > 4.2.< / strong > Keymap< / a > < / li > < li class = "chapter-item expanded " > < a href = "remapping.html" > < strong aria-hidden = "true" > 4.3.< / strong > Key Remapping< / a > < / li > < li class = "chapter-item expanded " > < a href = "hooks.html" > < strong aria-hidden = "true" > 4.4.< / strong > Hooks< / a > < / li > < / ol > < / li > < / ol > < / div >
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< h1 id = "themes" > < a class = "header" href = "#themes" > Themes< / a > < / h1 >
< p > First you'll need to place selected themes in your < code > themes< / code > directory (i.e < code > ~/.config/helix/themes< / code > ), the directory might have to be created beforehand.< / p >
< p > To use a custom theme add < code > theme = < name> < / code > to your < a href = "./configuration.html" > < code > config.toml< / code > < / a > or override it during runtime using < code > :theme < name> < / code > .< / p >
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< p > The default theme.toml can be found < a href = "https://github.com/helix-editor/helix/blob/master/theme.toml" > here< / a > , and user submitted themes < a href = "https://github.com/helix-editor/helix/blob/master/runtime/themes" > here< / a > . < / p >
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< h2 id = "creating-a-theme" > < a class = "header" href = "#creating-a-theme" > Creating a theme< / a > < / h2 >
< p > First create a file with the name of your theme as file name (i.e < code > mytheme.toml< / code > ) and place it in your < code > themes< / code > directory (i.e < code > ~/.config/helix/themes< / code > ).< / p >
< p > Each line in the theme file is specified as below:< / p >
< pre > < code class = "language-toml" > key = { fg = " #ffffff" , bg = " #000000" , modifiers = [" bold" , " italic" ] }
< / code > < / pre >
< p > where < code > key< / code > represents what you want to style, < code > fg< / code > specifies the foreground color, < code > bg< / code > the background color, and < code > modifiers< / code > is a list of style modifiers. < code > bg< / code > and < code > modifiers< / code > can be omitted to defer to the defaults.< / p >
< p > To specify only the foreground color:< / p >
< pre > < code class = "language-toml" > key = " #ffffff"
< / code > < / pre >
< p > if the key contains a dot < code > '.'< / code > , it must be quoted to prevent it being parsed as a < a href = "https://toml.io/en/v1.0.0#keys" > dotted key< / a > .< / p >
< pre > < code class = "language-toml" > " key.key" = " #ffffff"
< / code > < / pre >
< p > Possible modifiers:< / p >
< table > < thead > < tr > < th > Modifier< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > bold< / code > < / td > < / tr >
< tr > < td > < code > dim< / code > < / td > < / tr >
< tr > < td > < code > italic< / code > < / td > < / tr >
< tr > < td > < code > underlined< / code > < / td > < / tr >
< tr > < td > < code > slow\_blink< / code > < / td > < / tr >
< tr > < td > < code > rapid\_blink< / code > < / td > < / tr >
< tr > < td > < code > reversed< / code > < / td > < / tr >
< tr > < td > < code > hidden< / code > < / td > < / tr >
< tr > < td > < code > crossed\_out< / code > < / td > < / tr >
< / tbody > < / table >
< p > Possible keys:< / p >
< table > < thead > < tr > < th > Key< / th > < th > Notes< / th > < / tr > < / thead > < tbody >
< tr > < td > < code > attribute< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > keyword< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > keyword.directive< / code > < / td > < td > Preprocessor directives (#if in C)< / td > < / tr >
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< tr > < td > < code > keyword.control< / code > < / td > < td > Control flow< / td > < / tr >
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< tr > < td > < code > namespace< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > punctuation< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > punctuation.delimiter< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > operator< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > special< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > property< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > variable< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > variable.parameter< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > type< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > type.builtin< / code > < / td > < td > < / td > < / tr >
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< tr > < td > < code > type.enum.variant< / code > < / td > < td > Enum variants< / td > < / tr >
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< tr > < td > < code > constructor< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > function< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > function.macro< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > function.builtin< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > comment< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > variable.builtin< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > constant< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > constant.builtin< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > string< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > number< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > escape< / code > < / td > < td > Escaped characters< / td > < / tr >
< tr > < td > < code > label< / code > < / td > < td > For lifetimes< / td > < / tr >
< tr > < td > < code > module< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.background< / code > < / td > < td > < / td > < / tr >
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< tr > < td > < code > ui.cursor< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.cursor.insert< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.cursor.select< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.cursor.match< / code > < / td > < td > Matching bracket etc.< / td > < / tr >
< tr > < td > < code > ui.cursor.primary< / code > < / td > < td > Cursor with primary selection< / td > < / tr >
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< tr > < td > < code > ui.linenr< / code > < / td > < td > < / td > < / tr >
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< tr > < td > < code > ui.linenr.selected< / code > < / td > < td > < / td > < / tr >
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< tr > < td > < code > ui.statusline< / code > < / td > < td > < / td > < / tr >
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< tr > < td > < code > ui.statusline.inactive< / code > < / td > < td > < / td > < / tr >
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< tr > < td > < code > ui.popup< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.window< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.help< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.text< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.text.focus< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.menu.selected< / code > < / td > < td > < / td > < / tr >
< tr > < td > < code > ui.selection< / code > < / td > < td > For selections in the editing area< / td > < / tr >
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< tr > < td > < code > ui.selection.primary< / code > < / td > < td > < / td > < / tr >
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< tr > < td > < code > warning< / code > < / td > < td > LSP warning< / td > < / tr >
< tr > < td > < code > error< / code > < / td > < td > LSP error< / td > < / tr >
< tr > < td > < code > info< / code > < / td > < td > LSP info< / td > < / tr >
< tr > < td > < code > hint< / code > < / td > < td > LSP hint< / td > < / tr >
< / tbody > < / table >
< p > These keys match < a href = "https://tree-sitter.github.io/tree-sitter/syntax-highlighting#theme" > tree-sitter scopes< / a > . We half-follow the common scopes from < a href = "https://macromates.com/manual/en/language_grammars" > macromates language grammars< / a > with some differences.< / p >
< p > For a given highlight produced, styling will be determined based on the longest matching theme key. So it's enough to provide function to highlight < code > function.macro< / code > and < code > function.builtin< / code > as well, but you can use more specific scopes to highlight specific cases differently.< / p >
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< h2 id = "color-palettes" > < a class = "header" href = "#color-palettes" > Color palettes< / a > < / h2 >
< p > You can define a palette of named colors, and refer to them from the
configuration values in your theme. To do this, add a table called
< code > palette< / code > to your theme file:< / p >
< pre > < code class = "language-toml" > ui.background = " white"
ui.text = " black"
[palette]
white = " #ffffff"
black = " #000000"
< / code > < / pre >
< p > Remember that the < code > [palette]< / code > table includes all keys after its header,
so you should define the palette after normal theme options.< / p >
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