vim: add truecolor support

vim/plugins_config.vim

@@ -98,27 +98,11 @@ packadd termdebug "useless shit
 let g:gitgutter_enabled = 1
 let g:gitgutter_sign_allow_clobber = 0 " do not allow gitgutter to overwrite signs
 let g:gitgutter_sign_priority = 50
-" let g:gitgutter_set_sign_backgrounds = 1
-" let g:gitgutter_override_sign_column_highlight = 0
-
-" highlight clear GitGutterAdd GitGutterChange GitGutterModified GitGutterDelete SignColumn
-highlight SignColumn ctermbg=none
-
-highlight GitGutterAdd ctermbg=none ctermfg=2
-highlight GitGutterChange ctermbg=none ctermfg=3
-highlight GitGutterDelete ctermbg=none ctermfg=1
-highlight GitGutterChangeDelete ctermbg=none ctermfg=1
 
 let g:gitgutter_sign_added              = '+'
 let g:gitgutter_sign_modified           = '~'
 let g:gitgutter_sign_modified_removed   = 'x'
 
-" Improve vimdiff colors (deprecated, this was useful for the twilight256 colorscheme)
-" highlight DiffAdd    cterm=bold ctermfg=10 ctermbg=17 gui=none guifg=bg guibg=Red
-" highlight DiffDelete cterm=bold ctermfg=10 ctermbg=17 gui=none guifg=bg guibg=Red
-" highlight DiffChange cterm=bold ctermfg=10 ctermbg=17 gui=none guifg=bg guibg=Red
-" highlight DiffText   cterm=bold ctermfg=10 ctermbg=88 gui=none guifg=bg guibg=Red
-
 " Airline config
 set laststatus=2
 " let g:airline#extensions#tabline#enabled = 1

vim/shortcuts.vim

@@ -109,10 +109,7 @@ nmap <leader>za :Goyo 80%x85%<CR>
 nmap <leader>zz :Goyo<CR>
 
 ""Misc stuff
-
-let s:uname=''
 let s:uname = system('uname | tr -d "\n"') " Get platform name (stripping the trailing newline)
-
 if s:uname == "Darwin"
     "" Mac specific stuff
 elseif s:uname == "Linux"

vim/vimrc

@@ -8,7 +8,15 @@ scriptencoding utf-8
 " Style
 set background=dark
 let g:gruvbox_contrast_dark='hard'
+let g:gruvbox_sign_column='bg0'
+
 colorscheme gruvbox
+" enable truecolor support
+set termguicolors
+if ! has('termguicolors')
+    let &t_8f = "\<Esc>[38:2:%lu:%lu:%lum"
+    let &t_8b = "\<Esc>[48:2:%lu:%lu:%lum"
+endif
 
 " General stuff
 set nowrap