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Copyright (c) 2025 alligator
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# accent.vim
A vim colourscheme with a configurable accent colour. It can help you quickly tell apart different vim sessions at a glance.
It supports the GUI and 256 colour terminals.
## installing
Using vim-plug:
```vim
Plug 'alligator/accent.vim'
```
Other package managers may vary.
## options
```vim
" g:accent_color or g:accent_colour changes the accent colour.
" one of
let g:accent_colour = 'yellow' " the default
let g:accent_colour = 'orange'
let g:accent_colour = 'red'
let g:accent_colour = 'green'
let g:accent_colour = 'blue'
let g:accent_colour = 'magenta'
let g:accent_colour = 'cyan'
" g:accent_darken makes the background and some text colours darker.
let g:accent_darken = 0 " the default
let g:accent_darken = 1
" g:accent_invert_status inverts the colour of the status line text.
let g:accent_invert_status = 0 " the default
let g:accent_invert_status = 1
" g:accent_auto_cwd_colour sets the accent colour using a hash of the current directory.
let g:accent_auto_cwd_colour = 0 " the default
let g:accent_auto_cwd_colour = 1
" g:accent_no_bg stops the background colour being set, which will use the terminal default
let g:accent_no_bg = 0 " the default
let g:accent_no_bg = 1
" after changing settings, you'll need to re-apply the colorscheme
colorscheme accent
```
a neat thing to do is change the accent colour based on the working directory when vim starts:
```vim
if getcwd() =~ 'code/my-cool-project'
let g:accent_colour = 'cyan'
colo accent
endif
```
# accent.vim to-do
- [x] vimdiff colours
- [ ] 256 colour terminal support
- [ ] quick way to switch accent colour on the fly
- [x] make the menubar look good with all colours (magenta and green are too bright)
- [x] inactive buffer names are hard to read
" accent.vim
"
" a simple vim colourscheme with a configurable accent colour.
" by alligator
"
" https://github.com/Alligator/accent.vim
set background=dark
hi clear
if exists('syntax on')
syntax reset
endif
let g:colors_name = 'accent'
let g:accent_colours = {}
let g:accent_colours['red'] = { 'fg': '#e06c75', 'bg': '#b04c55', 'ctermfg': '167', 'ctermbg': '131' }
let g:accent_colours['orange'] = { 'fg': '#ee9360', 'bg': '#b66930', 'ctermfg': '173', 'ctermbg': '166' }
let g:accent_colours['green'] = { 'fg': '#98c379', 'bg': '#689349', 'ctermfg': '149', 'ctermbg': '107' }
let g:accent_colours['yellow'] = { 'fg': '#e5c07b', 'bg': '#a5803b', 'ctermfg': '179', 'ctermbg': '136' }
let g:accent_colours['blue'] = { 'fg': '#61afe7', 'bg': '#3876af', 'ctermfg': '74', 'ctermbg': '67' }
let g:accent_colours['magenta'] = { 'fg': '#c688cd', 'bg': '#965498', 'ctermfg': '176', 'ctermbg': '133' }
let g:accent_colours['cyan'] = { 'fg': '#56b6c2', 'bg': '#3696a2', 'ctermfg': '73', 'ctermbg': '30' }
let g:accent_auto_cwd_colour = get(g:, 'accent_auto_cwd_colour', 0)
let s:accent = get(g:, 'accent_colour', 'yellow')
let s:accent = get(g:, 'accent_color', s:accent)
let s:darken = get(g:, 'accent_darken', 0)
let s:invert_status = get(g:, 'accent_invert_status', 0)
let s:no_bg = get(g:, 'accent_no_bg', 0)
" 32 bit fowler-noll-vo hash
function! s:fnv1a(str)
let hash = 2166136261
let i = 0
while i < len(a:str)
let c = char2nr(a:str[i])
let hash = xor(hash, c)
let hash = hash * 16777619
let i += 1
endwhile
return hash
endfunction
if get(g:, 'accent_auto_cwd_colour', 0)
let hash = s:fnv1a(getcwd())
let key_index = abs(hash) % len(g:accent_colours)
let color = keys(g:accent_colours)[key_index]
let s:accent = color
endif
" foreground
let s:fg = ' guifg=#bcbfc4 ctermfg=250'
let s:fg_b1 = ' guifg=#efefff ctermfg=255'
let s:fg_d1 = ' guifg=#999999 ctermfg=246'
let s:fg_d2 = ' guifg=#777777 ctermfg=244'
let s:fg_inv = ' guifg=#282c34 ctermfg=236'
let s:fg_invd = ' guifg=#181c24 ctermfg=234'
let s:fg_c = ' guifg=' . get(accent_colours, s:accent).fg . ' ctermfg=' . get(accent_colours, s:accent).ctermfg
" background
let s:bg = ' guibg=#282c34 ctermbg=236'
let s:bg_b1 = ' guibg=#383c44 ctermbg=237'
let s:bg_b2 = ' guibg=#484c54 ctermbg=238'
let s:bg_none = ' guibg=NONE'
let s:bg_inv = ' guibg=#cccfd4 ctermbg=188'
let s:bg_red = ' guibg=' . accent_colours.red.bg . ' ctermbg=' . accent_colours.red.ctermbg
let s:bg_c = ' guibg=' . get(accent_colours, s:accent).bg . ' ctermbg=' . get(accent_colours, s:accent).ctermbg
if s:darken
let s:fg = ' guifg=#acafb4 ctermfg=248'
let s:fg_b1 = ' guifg=#dfdfef ctermfg=253'
let s:fg_d1 = ' guifg=#888888 ctermfg=244'
let s:fg_d2 = ' guifg=#666666 ctermfg=242'
let s:bg = ' guibg=#181c24 ctermbg=234'
endif
" special
let s:sp_red = ' guisp=' . accent_colours.red.fg . ' ctermfg=' . accent_colours.red.ctermfg
let s:sp_magenta = ' guisp=' . accent_colours.magenta.fg . ' ctermfg=' . accent_colours.magenta.ctermfg
let s:sp_blue = ' guisp=' . accent_colours.blue.fg . ' ctermfg=' . accent_colours.blue.ctermfg
let s:sp_cyan = ' guisp=' . accent_colours.cyan.fg . ' ctermfg=' . accent_colours.cyan.ctermfg
" modifiers
let s:bold = ' gui=bold'
let s:none = ' gui=none cterm=none'
let s:underline = ' gui=underline'
let s:undercurl = ' gui=undercurl'
" general
if s:no_bg
execute 'hi Normal' . s:fg . s:bg_none
else
execute 'hi Normal' . s:fg . s:bg
endif
if s:invert_status
execute 'hi StatusLine' . s:fg_invd .s:bg_c . s:none
else
execute 'hi StatusLine' . s:fg_b1 . s:bg_c . s:none
endif
execute 'hi StatusLineNC' . s:fg_d1 . s:bg_b2 . s:none
execute 'hi VertSplit' . s:fg_c . s:bg_b1 . s:none
execute 'hi LineNr' . s:fg_d2 . s:bg_none . s:none
execute 'hi CursorLineNr' . s:fg_b1 . s:bg_none . s:none
execute 'hi CursorLine' . s:bg_b1 . s:none
execute 'hi MatchParen' . s:fg_b1 . s:bg_b1 . s:bold
execute 'hi NonText' . s:fg_d2 . s:bg_none . s:none
execute 'hi WildMenu' . s:fg_inv . s:bg_inv . s:none
execute 'hi Search' . s:fg_inv . s:bg_c . s:none
execute 'hi Folded' . s:fg_b1 . s:bg_b1 . s:none
execute 'hi Visual' . s:bg_b2
execute 'hi Pmenu' . s:fg_d1 . s:bg_b1 . s:none
execute 'hi PmenuSel' . s:fg_c . s:bg_b2 . s:none
execute 'hi TabLine' . s:fg_d1 . s:bg_b1 . s:none
execute 'hi TabLineFill' . s:fg_d1 . s:bg_b2 . s:none
hi! link StatusLineTerm StatusLine
hi! link StatusLineTermNC StatusLineNC
execute 'hi Question' . s:fg_c
hi! link MoreMsg Question
hi! link FoldColumn Folded
" spellchecking
execute 'hi SpellBad' . ' ctermbg=NONE' . s:undercurl . s:sp_red
execute 'hi SpellRare' . ' ctermbg=NONE' . s:undercurl . s:sp_magenta
execute 'hi SpellCap' . ' ctermbg=NONE' . s:undercurl . s:sp_blue
execute 'hi SpellLocal' . ' ctermbg=NONE' . s:undercurl . s:sp_cyan
" syntax
if s:no_bg
execute 'hi Normal' . s:fg . s:bg_none
else
execute 'hi Normal' . s:fg . s:bg
endif
execute 'hi Comment' . s:fg_d2 . s:bg_none . s:none
execute 'hi String' . s:fg_c . s:bg_none . s:none
execute 'hi Type' . s:fg_b1 . s:bg_none . s:none
execute 'hi PreProc' . s:fg_d1 . s:bg_none . s:none
execute 'hi Underlined' . s:fg . s:bg_none . s:underline
execute 'hi Special' . s:fg_c . s:bg_none . s:none
execute 'hi Error' . s:fg_b1 . s:bg_red . s:none
hi! link Operator Normal
hi! link Identifier Normal
hi! link Todo Normal
hi! link Macro PreProc
hi! link Statement Type
hi! link Constant Type
hi! link SpecialKey Comment
hi! link Title Type
hi! link Directory Type
hi! link Function Type
hi! link Number String
hi! link Character String
hi! link ErrorMsg Error
" special stuff
hi! link xmlAttrib Normal
hi! link sqlKeyword Type
" diff
let s:diff_red = ' guifg=#e06c75 guibg=NONE gui=NONE ctermfg=167 ctermbg=NONE'
let s:diff_green = ' guifg=#98c379 guibg=NONE ctermfg=149 ctermbg=NONE'
let s:diff_purple = ' guifg=#c688cd guibg=NONE ctermfg=176 ctermbg=NONE'
execute 'hi DiffAdd' . s:diff_green
execute 'hi DiffDelete' . s:diff_red
execute 'hi DiffChange' . s:bg_b1
execute 'hi DiffText' . s:fg_b1 . s:bg_red . s:none
hi! link diffAdded DiffAdd
hi! link diffRemoved DiffDelete