zenbones-theme/lua/zenbones/init.lua

local lush = require "lush"
local p = require "zenbones.palette"

local normal_bg = p.bg
local diff_bg_l = 0

local lightness = vim.g.zenbones_lightness
if lightness == "bright" then
	normal_bg = normal_bg.abs_li(3).sa(6)
	diff_bg_l = -4
elseif lightness == "dim" then
	normal_bg = normal_bg.abs_da(3).de(12)
	diff_bg_l = 4
elseif lightness ~= nil then
	local error_msg = "Unknown zenbones_lightness value: " .. vim.inspect(lightness)
	vim.api.nvim_echo({ { error_msg, "WarningMsg" } }, true, {})
end

local italic_comments = type(vim.g.zenbones_italic_comments) == "boolean" and vim.g.zenbones_italic_comments or true

-- stylua: ignore start
local theme = lush(function()
	return {
		-- The following are all the Neovim default highlight groups from the docs
		-- as of 0.5.0-nightly-446, to aid your theme creation. Your themes should
		-- probably style all of these at a bare minimum.
		--
		-- Referenced/linked groups must come before being referenced/lined,
		-- so the order shown ((mostly) alphabetical) is likely
		-- not the order you will end up with.
		--
		-- You can uncomment these and leave them empty to disable any
		-- styling for that group (meaning they mostly get styled as Normal)
		-- or leave them commented to apply vims default colouring or linking.

		Normal          { bg = normal_bg, fg = p.fg }, -- normal text

		Underlined      { gui = "underline" }, -- (preferred) text that stands out, HTML links
		Bold            { gui = "bold" },
		Italic          { gui = "italic" },

		Error           { fg = p.rose }, -- (preferred) any erroneous construct
		ErrorMsg        { Error }, -- error messages on the command line
		WarningMsg      { fg = p.wood }, -- warning messages

		Comment         { fg = p.bg.da(38).de(28), gui = (italic_comments and "italic" or "NONE") }, -- any comment
		Conceal         { fg = p.fg.li(20), gui = "bold,italic" }, -- placeholder characters substituted for concealed text (see 'conceallevel')

		Cursor          { bg = p.fg, fg = p.bg.li(20) }, -- character under the cursor
		lCursor         { Cursor, bg = Cursor.bg.li(20)  }, -- the character under the cursor when |language-mapping| is used (see 'guicursor')
		-- CursorIM     { }, -- like Cursor, but used when in IME mode |CursorIM|
		TermCursor      { Cursor }, -- cursor in a focused terminal
		TermCursorNC    { lCursor }, -- cursor in an unfocused terminal

		CursorLine      { bg = Normal.bg.da(4) }, -- Screen-line at the cursor, when 'cursorline' is set.	Low-priority if foreground (ctermfg OR guifg) is not set.
		CursorColumn    { CursorLine }, -- Screen-column at the cursor, when 'cursorcolumn' is set.
		ColorColumn     { bg = p.wood.de(38).li(80) }, -- used for the columns set with 'colorcolumn'

		DiffAdd         { bg = p.leaf.de(77).li(82).abs_da(diff_bg_l) }, -- diff mode: Added line |diff.txt|
		DiffChange      { bg = p.water.de(22).li(76).abs_da(diff_bg_l) }, -- diff mode: Changed line |diff.txt|
		DiffDelete      { bg = p.rose.de(37).li(74).abs_da(diff_bg_l) }, -- diff mode: Deleted line |diff.txt|
		DiffText        { bg = p.water.de(24).li(64).abs_da(diff_bg_l), fg = p.fg }, -- diff mode: Changed text within a changed line |diff.txt|

		LineNr          { fg = Normal.bg.da(32) }, -- Line number for ":number" and ":#" commands, and when 'number' or 'relativenumber' option is set.
		SignColumn      { LineNr }, -- column where |signs| are displayed
		FoldColumn      { LineNr, gui = "bold" }, -- 'foldcolumn'
		Folded          { bg = Normal.bg.da(16), fg = Normal.bg.da(64) }, -- line used for closed folds
		CursorLineNr    { LineNr, fg = p.fg, gui = "bold" }, -- Like LineNr when 'cursorline' or 'relativenumber' is set for the cursor line.

		-- ModeMsg      { }, -- 'showmode' message (e.g., "-- INSERT -- ")
		-- MsgArea      { }, -- Area for messages and cmdline
		-- MsgSeparator { }, -- Separator for scrolled messages, `msgsep` flag of 'display'
		MoreMsg         { fg = p.leaf, gui = "bold" }, -- |more-prompt|
		NormalFloat     { bg = Normal.bg.da(6) }, -- Normal text in floating windows.
		FloatBorder     { fg = Normal.bg.da(50) }, -- Normal text in floating windows.

		Pmenu           { bg = Normal.bg.da(10) }, -- Popup menu: normal item.
		PmenuSel        { bg = Normal.bg.da(20) }, -- Popup menu: selected item.
		PmenuSbar       { bg = Normal.bg.da(28) }, -- Popup menu: scrollbar.
		PmenuThumb      { bg = Normal.bg.li(58) }, -- Popup menu: Thumb of the scrollbar.

		Search          { bg = p.blossom.de(10).li(54), fg = p.fg }, -- Last search pattern highlighting (see 'hlsearch').	Also used for similar items that need to stand out.
		IncSearch       { bg = p.blossom, fg = p.bg, gui = "bold" }, -- 'incsearch' highlighting; also used for the text replaced with ":s///c"
		-- Substitute   { }, -- |:substitute| replacement text highlighting
		MatchParen      { Search }, -- The character under the cursor or just before it, if it is a paired bracket, and its match. |pi_paren.txt|
		-- QuickFixLine { }, -- Current |quickfix| item in the quickfix window. Combined with |hl-CursorLine| when the cursor is there.

		SpellBad        { fg = Error.fg.de(30), gui = "undercurl", guisp = Error.fg }, -- Word that is not recognized by the spellchecker. |spell| Combined with the highlighting used otherwise.
		SpellCap        { SpellBad, guisp = Error.fg.li(10) }, -- Word that should start with a capital. |spell| Combined with the highlighting used otherwise.
		SpellLocal      { SpellCap }, -- Word that is recognized by the spellchecker as one that is used in another region. |spell| Combined with the highlighting used otherwise.
		SpellRare       { SpellBad, guisp = p.wood }, -- Word that is recognized by the spellchecker as one that is hardly ever used.  |spell| Combined with the highlighting used otherwise.

		StatusLine      { bg = p.bg.da(14), fg = p.fg }, -- status line of current window
		StatusLineNC    { bg = p.bg.da(10), fg = p.fg.li(28) }, -- status lines of not-current windows Note: if this is equal to "StatusLine" Vim will use "^^^" in the status line of the current window.
		TabLine         { StatusLine, gui = "italic" }, -- tab pages line, not active tab page label
		TabLineFill     { StatusLineNC }, -- tab pages line, where there are no labels
		TabLineSel      { gui = "bold" }, -- tab pages line, active tab page label
		VertSplit       { LineNr }, -- the column separating vertically split windows

		Visual          { bg = p.fg.li(84) }, -- Visual mode selection
		-- VisualNOS    { }, -- Visual mode selection when vim is "Not Owning the Selection".

		NonText         { fg = Normal.bg.da(22) }, -- '@' at the end of the window, characters from 'showbreak' and other characters that do not really exist in the text (e.g., ">" displayed when a double-wide character doesn't fit at the end of the line). See also |hl-EndOfBuffer|.
		SpecialKey      { NonText, gui = "italic" }, -- Unprintable characters: text displayed differently from what it really is.	But not 'listchars' whitespace. |hl-Whitespace|
		Whitespace      { NonText }, -- "nbsp", "space", "tab" and "trail" in 'listchars'
		EndOfBuffer     { NonText }, -- filler lines (~) after the end of the buffer.  By default, this is highlighted like |hl-NonText|.

		WildMenu        { bg = p.blossom, fg = p.bg }, -- current match in 'wildmenu' completion
		Directory       { gui = "bold" }, -- directory names (and other special names in listings)
		Question        { MoreMsg }, -- |hit-enter| prompt and yes/no questions
		Title           { gui = "bold" }, -- titles for output from ":set all", ":autocmd" etc.


		-- These groups are not listed as default vim groups,
		-- but they are defacto standard group names for syntax highlighting.
		-- commented out groups should chain up to their "preferred" group by
		-- default,
		-- Uncomment and edit if you want more specific syntax highlighting.

		Constant        { fg = p.fg.li(25), gui = "italic" }, -- (preferred) any constant
		-- String       { }, --   a string constant: "this is a string"
		-- Character    { }, --  a character constant: 'c', '\n'
		Number          { gui = "italic" }, --   a number constant: 234, 0xff
		Boolean         { Number }, --  a boolean constant: TRUE, false
		-- Float        { }, --    a floating point constant: 2.3e10

		Identifier      { fg = p.fg.li(15) }, -- (preferred) any variable name
		Function        { fg = p.fg }, -- function name (also: methods for classes)

		Statement       { fg = p.fg, gui = "bold" }, -- (preferred) any statement
		-- Conditional  { }, --  if, then, else, endif, switch, etp.
		-- Repeat       { }, --   for, do, while, etp.
		-- Label        { }, --    case, default, etp.
		-- Operator     { }, -- "sizeof", "+", "*", etp.
		-- Keyword      { }, --  any other keyword
		-- Exception    { }, --  try, catch, throw

		PreProc         { Statement }, -- (preferred) generic Preprocessor
		-- Include      { }, --  preprocessor #include
		-- Define       { }, --   preprocessor #define
		-- Macro        { }, --    same as Define
		-- PreCondit    { }, --  preprocessor #if, #else, #endif, etp.

		Type            { fg = p.bg.da(62) }, -- (preferred) int, long, char, etp.
		-- StorageClass { }, -- static, register, volatile, etc.
		-- Structure    { }, --  struct, union, enum, etc.
		-- Typedef      { }, --  A typedef

		Special         { fg = p.fg.li(21), gui = "bold" }, -- (preferred) any special symbol
		-- SpecialChar  { }, --  special character in a constant
		-- Tag          { }, --    you can use CTRL-] on this
		Delimiter       { fg = p.bg.da(42) }, --	character that needs attention
		SpecialComment  { Comment, gui = "bold" }, -- special things inside a comment
		-- Debug        { }, --    debugging statements

		-- ("Ignore", below, may be invisible...)
		-- Ignore       { }, -- (preferred) left blank, hidden	|hl-Ignore|

		Todo            { gui = "bold,underline" }, -- (preferred) anything that needs extra attention; mostly the keywords TODO FIXME and XXX

		-- These groups are for the native LSP client. Some other LSP clients may
		-- use these groups, or use their own. Consult your LSP client's
		-- documentation.

		LspReferenceText                        { ColorColumn }, -- used for highlighting "text" references
		LspReferenceRead                        { ColorColumn }, -- used for highlighting "read" references
		LspReferenceWrite                       { ColorColumn }, -- used for highlighting "write" references

		DiagnosticError		                    { Error },
		DiagnosticWarn                          { WarningMsg },
		DiagnosticInfo                          { fg = p.water },
		DiagnosticHint                          { fg = p.blossom },

		DiagnosticVirtualTextError              { DiagnosticError, bg = p.rose.abs_de(48).li(82) },
		DiagnosticVirtualTextWarn               { DiagnosticWarn, bg = p.wood.de(58).li(86) },

		DiagnosticUnderlineError		        { DiagnosticError, gui = "undercurl" },
		DiagnosticUnderlineWarn                 { DiagnosticWarn, gui = "undercurl" },
		DiagnosticUnderlineInfo                 { DiagnosticInfo, gui = "undercurl" },
		DiagnosticUnderlineHint                 { DiagnosticHint, gui = "undercurl" },

		LspDiagnosticsDefaultError              { DiagnosticError }, -- Used as the base highlight group. Other LspDiagnostic highlights link to this by default (except Underline)
		LspDiagnosticsDefaultWarning            { DiagnosticWarn }, -- Used as the base highlight group. Other LspDiagnostic highlights link to this by default (except Underline)
		LspDiagnosticsDefaultInformation        { DiagnosticInfo }, -- Used as the base highlight group. Other LspDiagnostic highlights link to this by default (except Underline)
		LspDiagnosticsDefaultHint               { DiagnosticHint }, -- Used as the base highlight group. Other LspDiagnostic highlights link to this by default (except Underline)

		LspDiagnosticsVirtualTextError          { DiagnosticVirtualTextError }, -- Used for "Error" diagnostic virtual text
		LspDiagnosticsVirtualTextWarning        { DiagnosticVirtualTextWarn }, -- Used for "Warning" diagnostic virtual text
		-- LspDiagnosticsVirtualTextInformation { }, -- Used for "Information" diagnostic virtual text
		-- LspDiagnosticsVirtualTextHint        { }, -- Used for "Hint" diagnostic virtual text

		LspDiagnosticsUnderlineError            { DiagnosticUnderlineError }, -- Used to underline "Error" diagnostics
		LspDiagnosticsUnderlineWarning          { DiagnosticUnderlineWarn }, -- Used to underline "Warning" diagnostics
		LspDiagnosticsUnderlineInformation      { DiagnosticUnderlineInfo }, -- Used to underline "Information" diagnostics
		LspDiagnosticsUnderlineHint             { DiagnosticUnderlineHint }, -- Used to underline "Hint" diagnostics

		-- LspDiagnosticsFloatingError          { }, -- Used to color "Error" diagnostic messages in diagnostics float
		-- LspDiagnosticsFloatingWarning        { }, -- Used to color "Warning" diagnostic messages in diagnostics float
		-- LspDiagnosticsFloatingInformation    { }, -- Used to color "Information" diagnostic messages in diagnostics float
		-- LspDiagnosticsFloatingHint           { }, -- Used to color "Hint" diagnostic messages in diagnostics float

		-- LspDiagnosticsSignError              { }, -- Used for "Error" signs in sign column
		-- LspDiagnosticsSignWarning            { }, -- Used for "Warning" signs in sign column
		-- LspDiagnosticsSignInformation        { }, -- Used for "Information" signs in sign column
		-- LspDiagnosticsSignHint               { }, -- Used for "Hint" signs in sign column

		LspCodeLens                             { LineNr },

		-- These groups are for the neovim tree-sitter highlights.
		-- As of writing, tree-sitter support is a WIP, group names may change.
		-- By default, most of these groups link to an appropriate Vim group,
		-- TSError -> Error for example, so you do not have to define these unless
		-- you explicitly want to support Treesitter's improved syntax awareness.

		-- TSAnnotation         { };	-- For C++/Dart attributes, annotations that can be attached to the code to denote some kind of meta information.
		-- TSAttribute          { };	-- (unstable) TODO: docs
		-- TSBoolean            { };	-- For booleans.
		-- TSCharacter          { };	-- For characters.
		-- TSComment            { };	-- For comment blocks.
		-- TSConstructor        { };	-- For constructor calls and definitions: ` { }` in Lua, and Java constructors.
		-- TSConditional        { };	-- For keywords related to conditionnals.
		-- TSConstant           { };	-- For constants
		-- TSConstBuiltin       { };	-- For constant that are built in the language: `nil` in Lua.
		-- TSConstMacro         { };	-- For constants that are defined by macros: `NULL` in C.
		-- TSError              { };	-- For syntax/parser errors.
		-- TSException          { };	-- For exception related keywords.
		-- TSField              { };	-- For fields.
		-- TSFloat              { };	-- For floats.
		-- TSFunction           { };	-- For function (calls and definitions).
		-- TSFuncBuiltin        { };	-- For builtin functions: `table.insert` in Lua.
		-- TSFuncMacro          { };	-- For macro defined fuctions (calls and definitions): each `macro_rules` in Rust.
		-- TSInclude            { };	-- For includes: `#include` in C, `use` or `extern crate` in Rust, or `require` in Lua.
		-- TSKeyword            { };	-- For keywords that don't fall in previous categories.
		-- TSKeywordFunction    { };	-- For keywords used to define a fuction.
		-- TSLabel              { };	-- For labels: `label:` in C and `:label:` in Lua.
		-- TSMethod             { };	-- For method calls and definitions.
		-- TSNamespace          { };	-- For identifiers referring to modules and namespaces.
		-- TSNone               { };	-- TODO: docs
		-- TSNumber             { };	-- For all numbers
		-- TSOperator           { };	-- For any operator: `+`, but also `->` and `*` in C.
		-- TSParameter          { };	-- For parameters of a function.
		-- TSParameterReference { };	-- For references to parameters of a function.
		-- TSProperty           { };	-- Same as `TSField`.
		-- TSPunctDelimiter     { };	-- For delimiters ie: `.`
		-- TSPunctBracket       { };	-- For brackets and parens.
		-- TSPunctSpecial       { };	-- For special punctutation that does not fall in the catagories before.
		-- TSRepeat             { };	-- For keywords related to loops.
		-- TSString             { };	-- For strings.
		-- TSStringRegex        { };	-- For regexes.
		-- TSStringEscape       { };	-- For escape characters within a string.
		-- TSSymbol             { };	-- For identifiers referring to symbols or atoms.
		-- TSType               { };	-- For types.
		-- TSTypeBuiltin        { };	-- For builtin types.
		TSVariable              { Identifier }, -- Any variable name that does not have another highlight.
		-- TSVariableBuiltin    { };	-- Variable names that are defined by the languages, like `this` or `self`.

		TSTag                   { Special }, -- Tags like html tag names.
		-- TSTagDelimiter       { };	-- Tag delimiter like `<` `>` `/`
		-- TSText               { };	-- For strings considered text in a markup language.
		-- TSEmphasis           { };	-- For text to be represented with emphasis.
		-- TSUnderline          { };	-- For text to be represented with an underline.
		-- TSStrike             { };	-- For strikethrough text.
		-- TSTitle              { };	-- Text that is part of a title.
		-- TSLiteral            { };	-- Literal text.
		-- TSURI                { };	-- Any URI like a link or email.

		TSNote                  { LspDiagnosticsDefaultInformation },
		TSWarning               { WarningMsg },
		TSDanger                { Error },

		-- Syntax
		diffAdded     { fg = p.leaf },
		diffRemoved   { fg = p.rose },
		diffChanged   { fg = p.water },
		diffOldFile   { fg = p.rose, gui = "italic" },
		diffNewFile   { fg = p.leaf, gui = "italic" },
		diffFile      { fg = p.wood, gui = "bold" },
		diffLine      { fg = p.blossom, gui = "bold" },
		diffIndexLine { fg = p.wood },

		gitcommitOverflow { WarningMsg },
		
		markdownH1    { Statement, gui = "bold,underline" },
		markdownH2    { Statement },
		markdownH3    { Statement },
		markdownH4    { Special },
		markdownH5    { Special },
		markdownH6    { Special },
		markdownCode  { Identifier },
		markdownLinkTextDelimiter { Delimiter },

		helpHyperTextEntry { Special },
		helpHyperTextJump  { Constant },
		helpSpecial        { Type },
		helpOption         { Constant },

		-- Other plugins
		GitSignsAdd                { fg = p.leaf },
		GitSignsChange             { fg = p.water },
		GitSignsDelete             { fg = p.rose },

		GitGutterAdd               { GitSignsAdd },
		GitGutterChange            { GitSignsChange },
		GitGutterDelete            { GitSignsDelete },

		IndentBlanklineChar        { fg = p.bg.da(12).de(20) },

		TelescopeSelection         { CursorLine },
		TelescopeSelectionCaret    { TelescopeSelection, fg = p.rose },
		TelescopeMatching          { fg = p.blossom, gui = "bold" },
		TelescopeBorder            { FloatBorder },

		Sneak                      { Search },
		SneakLabel                 { WildMenu },
		SneakLabelMask             { bg = p.blossom, fg = p.blossom },

		LightspeedLabel            { fg = p.blossom, gui = "bold,underline" },
		LightspeedLabelOverlapped  { fg = p.blossom, gui = "underline" },
		LightspeedLabelDistant     { fg = p.sky, gui = "bold,underline" },
		LightspeedLabelDistantOverlapped { fg = p.sky, gui = "underline" },
		LightspeedShortcut         { SneakLabel, gui = "bold,underline" },
		LightspeedOneCharMatch     { SneakLabel, gui = "bold" },
		LightspeedMaskedChar       { Conceal },
		LightspeedUnlabeledMatch   { Bold },
		LightspeedPendingOpArea    { SneakLabel },
		LightspeedPendingChangeOpArea { fg = p.blossom },
		LightspeedGreyWash         { fg = Comment.fg },

		HopNextKey                 { LightspeedLabel },
		HopNextKey1                { LightspeedLabelDistant },
		HopNextKey2                { fg = p.water },
		HopUnmatched               { LightspeedGreyWash } ,

		BufferCurrent              { TabLineSel },
		BufferVisible              { fg = StatusLineNC.fg },
		BufferVisibleSign          { fg = StatusLineNC.fg },
		BufferVisibleIndex         { fg = StatusLineNC.fg },

		CocErrorSign               { LspDiagnosticsDefaultError },
		CocWarningSign             { LspDiagnosticsDefaultWarning },
		CocInfoSign                { LspDiagnosticsDefaultInformation },
		CocHintSign                { LspDiagnosticsDefaultHint },
		CocErrorHighlight          { LspDiagnosticsUnderlineError },
		CocWarningHighlight        { LspDiagnosticsUnderlineWarning },
		CocInfoHighlight           { LspDiagnosticsUnderlineInformation },
		CocHintHighlight           { LspDiagnosticsUnderlineHint },
		CocErrorVirtualText        { LspDiagnosticsVirtualTextError },
		CocWarningVitualText       { LspDiagnosticsVirtualTextWarning },
		CocSelectedText            { SpellBad },
		CocCodeLens                { LineNr },
		CocMarkdownLink            { fg = p.sky, gui = "underline" },

		NeogitNotificationError    { LspDiagnosticsDefaultError },
		NeogitNotificationWarning  { LspDiagnosticsDefaultWarning },
		NeogitNotificationInfo     { LspDiagnosticsDefaultInformation },

		NeogitDiffContextHighlight { CursorLine },
		NeogitDiffDeleteHighlight  { DiffDelete },
		NeogitDiffAddHighlight     { DiffAdd },
		NeogitHunkHeader           { LineNr },
		NeogitHunkHeaderHighlight  { CursorLine, fg = p.fg, gui = "bold" },

		WhichKey                   { Statement },
		WhichKeyGroup              { Special },
		WhichKeySeparator          { LineNr },
		WhichKeyValue              { Constant },

		TroubleNormal              { Function },
		TroubleText                { Function },
		TroubleSource              { Constant },

		NvimTreeNormal             { NormalFloat },
		NvimTreeVertSplit          { fg = "bg" },
		NvimTreeCursorLine         { bg = StatusLineNC.bg },
		NvimTreeCursorColumn       { NvimTreeCursorLine	},
		NvimTreeRootFolder         { fg = p.water, gui = "bold" },
		NvimTreeSymlink            { fg = p.water },
		NvimTreeGitDirty           { diffChanged },
		NvimTreeGitNew             { diffAdded },
		NvimTreeGitDeleted         { diffRemoved },
		NvimTreeSpecialFile        { fg = p.blossom, gui = "underline" },
	}
end)
-- stylua: ignore end

local specs = {
	theme,
}

if vim.g.zenbones_dim_noncurrent_window then
	table.insert(
		specs,
		lush(function()
			return {
				NormalNC { theme.Normal, bg = theme.Normal.bg.abs_da(2) }, -- normal text in non-current windows
			}
		end)
	)
end

if vim.g.zenbones_solid_vert_split then
	table.insert(
		specs,
		lush(function()
			return {
				VertSplit { bg = theme.StatusLineNC.bg, fg = theme.LineNr.fg }, -- the column separating vertically split windows
			}
		end)
	)
end

return lush.merge(specs)

-- vi:nowrap