dot/.config/nvim/colors/basic.lua

-- basic neovim colorscheme template
--
-- A simple neovim colorscheme template that defines highlight groups
-- from a list of 8 colors.

-- colors ----------------------------------------------------------------------
local C = {
  black          = { cterm =  0, gui = "#000000" },
  red            = { cterm =  1, gui = "#fa3500" },
  green          = { cterm =  2, gui = "#009843" },
  orange         = { cterm =  3, gui = "#d06600" },
  blue           = { cterm =  4, gui = "#856cff" },
  magenta        = { cterm =  5, gui = "#ff1170" },
  cyan           = { cterm =  6, gui = "#008cca" },
  white          = { cterm =  7, gui = "#e2e2e2" },
  bright_black   = { cterm =  8, gui = "#848484" },
  bright_red     = { cterm =  9, gui = "#ff888e" },
  bright_green   = { cterm = 10, gui = "#00c55b" },
  bright_orange  = { cterm = 11, gui = "#ff8d48" },
  bright_blue    = { cterm = 12, gui = "#ac9fff" },
  bright_magenta = { cterm = 13, gui = "#ffb1c0" },
  bright_cyan    = { cterm = 14, gui = "#92ccff" },
  bright_white   = { cterm = 15, gui = "#ffffff" },
}

vim.g.terminal_color_0  = "#000000"
vim.g.terminal_color_1  = "#fa3500"
vim.g.terminal_color_2  = "#009843"
vim.g.terminal_color_3  = "#d06600"
vim.g.terminal_color_4  = "#856cff"
vim.g.terminal_color_5  = "#ff1170"
vim.g.terminal_color_6  = "#008cca"
vim.g.terminal_color_7  = "#e2e2e2"
vim.g.terminal_color_8  = "#848484"
vim.g.terminal_color_9  = "#ff888e"
vim.g.terminal_color_10 = "#00c55b"
vim.g.terminal_color_11 = "#ff8d48"
vim.g.terminal_color_12 = "#ac9fff"
vim.g.terminal_color_13 = "#ffb1c0"
vim.g.terminal_color_14 = "#92ccff"
vim.g.terminal_color_15 = "#ffffff"

-- init ------------------------------------------------------------------------
vim.cmd.highlight("clear")
if vim.fn.exists("syntax_on") then
  vim.cmd.syntax("reset")
end
vim.opt.background = "dark"
vim.g.colors_name = "basic"

-- highlights ------------------------------------------------------------------
local fg = C.white
local bg = C.black
local accent = C.magenta
local dimmed = C.blue

local nvim_set_hl = vim.api.nvim_set_hl
local function set_hl(group, def) nvim_set_hl(0, group, def) end

-- normal ----------------------------------------------------------------------
local normal_h = {}

set_hl("Normal", normal_h)
set_hl("NormalNC", normal_h)

-- tui -------------------------------------------------------------------------
local tui_normal_h = {}
local tui_accent_h = { ctermfg = accent.cterm, fg = accent.gui }
local tui_dimmed_h = { ctermfg = dimmed.cterm, fg = dimmed.gui }

set_hl("StatusLine", tui_dimmed_h)
set_hl("StatusLineNC", tui_dimmed_h)
set_hl("TabLine", tui_dimmed_h)
set_hl("TabLineFill", tui_dimmed_h)
set_hl("TabLineSel", tui_accent_h)
set_hl("WinBar", tui_accent_h)
set_hl("WinBarNC", tui_dimmed_h)
set_hl("WinSeparator", tui_dimmed_h)
set_hl("LineNr", tui_accent_h)
set_hl("LineNrAbove", tui_dimmed_h)
set_hl("LineNrBelow", tui_dimmed_h)
set_hl("SignColumn", tui_dimmed_h)
set_hl("FoldColumn", tui_dimmed_h)
set_hl("WildMenu", tui_accent_h)

-- float -----------------------------------------------------------------------
local float_normal_h = { ctermfg = bg.cterm,
                         fg      = bg.gui,
                         ctermbg = fg.cterm,
                         bg      = fg.gui }
local float_dimmed_h = { ctermfg = dimmed.cterm, 
                         fg      = dimmed.gui,
                         ctermbg = fg.cterm, 
                         bg      = fg.gui }
local float_accent_h = { ctermfg = accent.cterm, 
                         fg      = accent.gui,
                         ctermbg = fg.cterm, 
                         bg      = fg.gui }

set_hl("NormalFloat", float_normal_h)
set_hl("FloatBorder", float_dimmed_h)
set_hl("FloatTitle", float_accent_h)

-- menu ------------------------------------------------------------------------
local menu_normal_h = { ctermfg = accent.cterm, 
                        fg      = accent.gui,
                        ctermbg = fg.cterm,
                        bg      = fg.gui }
local menu_accent_h = { ctermfg = accent.cterm,
                        fg      = accent.gui,
                        ctermbg = fg.cterm,
                        bg      = fg.gui,
                        reverse = true }

set_hl("Pmenu", menu_normal_h)
set_hl("PmenuSel", menu_accent_h)
set_hl("PmenuKind", menu_normal_h)
set_hl("PmenuKindSel", menu_accent_h)
set_hl("PmenuExtra", menu_normal_h)
set_hl("PmenuExtraSel", menu_accent_h)
set_hl("PmenuSbar", menu_normal_h)
set_hl("PmenuThumb", menu_accent_h)

-- messages --------------------------------------------------------------------
local message_normal_h = {}
local message_accent_h = { ctermfg = accent.cterm,   fg = accent.gui }
local message_error_h  = { ctermfg = C.red.cterm,    fg = C.red.gui }
local message_warn_h   = { ctermfg = C.orange.cterm, fg = C.orange.gui }

set_hl("MsgArea", message_normal_h)
set_hl("MsgSeparator", message_normal_h)
set_hl("ModeMsg", message_accent_h)
set_hl("MoreMsg", message_accent_h)
set_hl("WarningMsg", message_warn_h)
set_hl("ErrorMsg", message_error_h)
set_hl("Question", message_accent_h)
set_hl("Title", message_accent_h)

-- buffer ----------------------------------------------------------------------
local buffer_dimmed_h         = { ctermfg = dimmed.cterm, 
                                  fg      = dimmed.gui }
local buffer_dimmed_reverse_h = { ctermfg = dimmed.cterm,
                                  fg      = dimmed.gui,
                                  reverse = true }
local buffer_accent_h         = { ctermfg = accent.cterm,
                                  fg      = accent.gui }

set_hl("Conceal", buffer_dimmed_h)
set_hl("NonText", buffer_dimmed_h)
set_hl("EndOfBuffer", buffer_dimmed_h)
set_hl("Whitespace", buffer_dimmed_h)
set_hl("Folded", buffer_dimmed_h)
set_hl("SpecialKey", buffer_accent_h)
set_hl("ColorColumn", buffer_dimmed_reverse_h)

-- cursor ----------------------------------------------------------------------
local cursor_normal_h = { reverse = true }

set_hl("CursorLine", cursor_normal_h)
set_hl("CursorLineNr", cursor_normal_h)
set_hl("CursorLineSign", cursor_normal_h)
set_hl("CursorLineFold", cursor_normal_h)
set_hl("CursorColumn", cursor_normal_h)
set_hl("QuickFixLine", cursor_normal_h)
set_hl("Cursor", cursor_normal_h)
set_hl("lCursor", cursor_normal_h)
set_hl("CursorIM", cursor_normal_h)
set_hl("TermCursor", cursor_normal_h)
set_hl("TermCursorNC", cursor_normal_h)

-- match -----------------------------------------------------------------------
local match_normal_h = { ctermfg = C.black.cterm,
                         fg      = C.black.gui, 
                         ctermbg = C.orange.cterm,
                         bg      = C.orange.gui }
local match_accent_h = { ctermfg = C.black.cterm,
                         fg      = C.black.gui, 
                         ctermbg = C.magenta.cterm,
                         bg      = C.magenta.gui }
local match_parens_h = { ctermfg = C.magenta.cterm,
                         fg      = C.magenta.gui, 
                         ctermbg = C.white.cterm, 
                         bg      = C.white.gui }

set_hl("Search", match_normal_h)
set_hl("Substitute", match_normal_h)
set_hl("IncSearch", match_accent_h)
set_hl("CurSearch", match_accent_h)
set_hl("MatchParen", match_parens_h)

-- selection -------------------------------------------------------------------
local selection_normal_h = { ctermfg = C.black.cterm,
                             fg      = C.black.gui,
                             ctermbg = C.blue.cterm,
                             bg      = C.blue.gui }

set_hl("Visual", selection_normal_h)
set_hl("Visualnos", selection_normal_h)

-- diff ------------------------------------------------------------------------
local diff_add_h    = { ctermfg   = C.green.cterm, 
                        fg        = C.green.gui }
local diff_change_h = { ctermfg   = C.orange.cterm,
                        fg        = C.orange.gui }
local diff_delete_h = { ctermfg   = C.red.cterm,
                        fg        = C.red.gui }
local diff_text_h   = { ctermfg   = C.orange.cterm,
                        fg        = C.orange.gui,
                        underline = true }

set_hl("DiffAdd", diff_add_h)
set_hl("DiffChange", diff_change_h)
set_hl("DiffDelete", diff_delete_h)
set_hl("DiffText", diff_text_h)

-- spell -----------------------------------------------------------------------
local spell_error_h = { ctermfg   = C.red.cterm,
                        fg        = C.red.gui,
                        underline = true }
local spell_warn_h  = { ctermfg   = C.orange.cterm,
                        fg        = C.orange.gui,
                        underline = true }

set_hl("SpellBad", spell_error_h)
set_hl("SpellCap", spell_warn_h)
set_hl("SpellLocal", spell_warn_h)
set_hl("SpellRare", spell_warn_h)

-- diagnostic ------------------------------------------------------------------
local diagnostic_error_h   = { ctermfg   = C.red.cterm,
                               fg        = C.red.gui }
local diagnostic_warn_h    = { ctermfg   = C.orange.cterm,
                               fg        = C.orange.gui }
local diagnostic_info_h    = { ctermfg   = C.blue.cterm,
                               fg        = C.blue.gui }
local diagnostic_hint_h    = { ctermfg   = C.white.cterm,
                               fg        = C.white.gui }
local diagnostic_ok_h      = { ctermfg   = C.green.cterm,
                               fg        = C.green.gui }
local diagnostic_error_u_h = { ctermfg   = C.red.cterm,
                               fg        = C.red.gui,
                               underline = true }
local diagnostic_warn_u_h  = { ctermfg   = C.orange.cterm,
                               fg        = C.orange.gui,
                               underline = true }
local diagnostic_info_u_h  = { ctermfg   = C.blue.cterm,
                               fg        = C.blue.gui,
                               underline = true }
local diagnostic_hint_u_h  = { ctermfg   = C.white.cterm,
                               fg        = C.white.gui,
                               underline = true }
local diagnostic_ok_u_h    = { ctermfg   = C.green.cterm,
                               fg        = C.green.gui,
                               underline = true }

set_hl("DiagnosticError", diagnostic_error_h)
set_hl("DiagnosticWarn", diagnostic_warn_h)
set_hl("DiagnosticInfo", diagnostic_info_h)
set_hl("DiagnosticHint", diagnostic_hint_h)
set_hl("DiagnosticOk", diagnostic_ok_h)
set_hl("DiagnosticVirtualError", diagnostic_error_h)
set_hl("DiagnosticVirtualWarn", diagnostic_warn_h)
set_hl("DiagnosticVirtualInfo", diagnostic_info_h)
set_hl("DiagnosticVirtualHint", diagnostic_hint_h)
set_hl("DiagnosticVirtualOk", diagnostic_ok_h)
set_hl("DiagnosticUnderlineError", diagnostic_error_u_h)
set_hl("DiagnosticUnderlineWarn", diagnostic_warn_u_h)
set_hl("DiagnosticUnderlineInfo", diagnostic_info_u_h)
set_hl("DiagnosticUnderlineHint", diagnostic_hint_u_h)
set_hl("DiagnosticUnderlineOk", diagnostic_ok_u_h)
set_hl("DiagnosticFloatingError", diagnostic_error_h)
set_hl("DiagnosticFloatingWarn", diagnostic_warn_h)
set_hl("DiagnosticFloatingInfo", diagnostic_info_h)
set_hl("DiagnosticFloatingHint", diagnostic_hint_h)
set_hl("DiagnosticFloatingOk", diagnostic_ok_h)
set_hl("DiagnosticSingError", diagnostic_error_h)
set_hl("DiagnosticSingWarn", diagnostic_warn_h)
set_hl("DiagnosticSingInfo", diagnostic_info_h)
set_hl("DiagnosticSingHint", diagnostic_hint_h)
set_hl("DiagnosticSingOk", diagnostic_ok_h)
set_hl("DiagnosticDeprecated", diagnostic_hint_u_h)
set_hl("DiagnosticUnnecessary", diagnostic_hint_u_h)

-- misc ------------------------------------------------------------------------
set_hl("Directory", { ctermfg = C.blue.cterm, fg = C.blue.gui })

-- syntax ----------------------------------------------------------------------
local syntax_normal_h     = {}
local syntax_comment_h    = { ctermfg       = C.blue.cterm,
                              fg            = C.blue.gui }
local syntax_constant_h   = { ctermfg       = C.red.cterm,
                              fg            = C.red.gui }  
local syntax_identifier_h = {}
local syntax_statement_h  = { ctermfg       = C.orange.cterm,
                              fg            = C.orange.gui }
local syntax_preproc_h    = { ctermfg       = C.magenta.cterm,
                              fg            = C.magenta.gui }
local syntax_type_h       = { ctermfg       = C.green.cterm,
                              fg            = C.green.gui }
local syntax_special_h    = { ctermfg       = C.orange.cterm,
                              fg            = C.orange.gui }
local syntax_underline_h  = { underline     = true }
local syntax_ignore_h     = { ctermfg       = C.black.cterm,
                              fg            = C.black.gui }
local syntax_error_h      = { ctermfg       = C.black.cterm,
                              fg            = C.black.gui,
                              ctermbg       = C.red.cterm,
                              bg            = C.red.gui }
local syntax_warn_h       = { ctermfg       = C.black.cterm,
                              fg            = C.black.gui,
                              ctermbg       = C.orange.cterm,
                              bg            = C.orange.gui }
local syntax_italic_h     = { italic        = true }
local syntax_bold_h       = { bold          = true }
local syntax_bolditalic_h = { bold          = true,
                              italic        = true }
local syntax_strike_h     = { strikethrough = true }

set_hl("Comment", syntax_comment_h)
set_hl("Constant", syntax_constant_h)
set_hl("String", syntax_constant_h)
set_hl("Character", syntax_constant_h)
set_hl("Number", syntax_constant_h)
set_hl("Boolean", syntax_constant_h)
set_hl("Float", syntax_constant_h)
set_hl("Identifier", syntax_identifier_h)
set_hl("Function", syntax_identifier_h)
set_hl("Statement", syntax_statement_h)
set_hl("Conditional", syntax_statement_h)
set_hl("Repeat", syntax_statement_h)
set_hl("Label", syntax_statement_h)
set_hl("Operator", syntax_statement_h)
set_hl("Keyword", syntax_statement_h)
set_hl("Exception", syntax_statement_h)
set_hl("PreProc", syntax_preproc_h)
set_hl("Include", syntax_preproc_h)
set_hl("Define", syntax_preproc_h)
set_hl("Macro", syntax_preproc_h)
set_hl("PreCondit", syntax_preproc_h)
set_hl("Type", syntax_type_h)
set_hl("StorageClass", syntax_type_h)
set_hl("Structure", syntax_type_h)
set_hl("Typedef", syntax_type_h)
set_hl("Special", syntax_special_h)
set_hl("SpecialChar", syntax_special_h)
set_hl("Tag", syntax_special_h)
set_hl("Delimiter", syntax_special_h)
set_hl("SpecialComment", syntax_special_h)
set_hl("Debug", syntax_special_h)
set_hl("Underlined", syntax_underline_h)
set_hl("Ignore", syntax_ignore_h)
set_hl("Error", syntax_error_h)
set_hl("Todo", syntax_warn_h)

set_hl("Italic", syntax_italic_h)
set_hl("Bold", syntax_bold_h)
set_hl("BoldItalic", syntax_bolditalic_h)
set_hl("Strike", syntax_strike_h)

-- markdown --------------------------------------------------------------------
local markdown_label_h     = { ctermfg   = C.magenta.cterm,
                               fg        = C.magenta.gui }
local markdown_delimiter_h = { ctermfg   = C.blue.cterm,
                               fg        = C.blue.gui }
local markdown_underline_h = { ctermfg   = C.blue.cterm,
                               fg        = C.blue.gui,
                               underline = true }

set_hl("markdownLabel", markdown_label_h)
set_hl("markdownHeadingDelimiter", markdown_delimiter_h)
set_hl("markdownItalicDelimiter", markdown_delimiter_h)
set_hl("markdownBoldDelimiter", markdown_delimiter_h)
set_hl("markdownBoldItalicDelimiter", markdown_delimiter_h)
set_hl("markdownStrikeDelimiter", markdown_delimiter_h)
set_hl("markdownCodeDelimiter", markdown_delimiter_h)
set_hl("markdownLinkTextDelimiter", markdown_delimiter_h)
set_hl("markdownLinkDelimiter", markdown_delimiter_h)
set_hl("markdownUrl", markdown_delimiter_h)

-- yaml ------------------------------------------------------------------------
set_hl("yamlBlockMappingKey", syntax_comment_h)
set_hl("yamlPlainScalar", syntax_constant_h)