diff --git a/plugin/quickui.vim b/plugin/quickui.vim
index 6b32bd6..6d3fec2 100644
--- a/plugin/quickui.vim
+++ b/plugin/quickui.vim
@@ -10,37 +10,87 @@
 " vim: set noet fenc=utf-8 ff=unix sts=4 sw=4 ts=4 :
 
 
+" require vim 8.2+
+if has('patch-8.2.1') == 0 || has('nvim')
+	finish
+endif
+
 
 "----------------------------------------------------------------------
-" default highlighting
+" Script Home
 "----------------------------------------------------------------------
+let s:home = fnamemodify(resolve(expand('<sfile>:p')), ':h')
+
 
+"----------------------------------------------------------------------
+" default highlighting
+"----------------------------------------------------------------------
 function! s:hilink(name, target)
 	if !hlexists(a:name)
 		exec 'hi! link ' . a:name . ' ' . a:target
 	endif
 endfunc
 
-hi! QuickDefaultBackground ctermfg=0 ctermbg=7 guifg=black guibg=gray
-hi! QuickDefaultKey ctermfg=9 guifg=#f92772
-hi! QuickDefaultDisable ctermfg=59 guifg=#75715e
-hi! QuickDefaultSel cterm=bold ctermfg=0 ctermbg=2 gui=bold guibg=brown guifg=gray
-hi! QuickDefaultHelp ctermfg=247 guifg=#959173
+
+function! QuickThemeChange(theme)
+	if a:theme == ''
+		hi! QuickDefaultBackground ctermfg=0 ctermbg=7 guifg=black guibg=gray
+		hi! QuickDefaultSel cterm=bold ctermfg=0 ctermbg=2 gui=bold guibg=brown guifg=gray
+		hi! QuickDefaultKey term=bold ctermfg=9 gui=bold guifg=#f92772
+		hi! QuickDefaultDisable ctermfg=59 guifg=#75715e
+		hi! QuickDefaultHelp ctermfg=247 guifg=#959173
+	elseif a:theme == 'colorscheme' || a:theme == 'system' || a:theme == 'vim'
+		hi! link QuickDefaultBackground Pmenu
+		hi! link QuickDefaultKey PmenuSel
+		hi! link QuickDefaultKey Title
+		hi! link QuickDefaultDisable Comment
+		hi! link QuickDefaultHelp Conceal
+	elseif a:theme == 'gruvbox'
+		hi! QuickDefaultBackground ctermfg=223 ctermbg=239 guifg=#ebdbb2 guibg=#504945
+		hi! QuickDefaultSel cterm=bold ctermfg=239 ctermbg=109 gui=bold guifg=#504945 guibg=#83a598
+		hi! QuickDefaultKey term=bold ctermfg=12 guifg=#fd9720
+		hi! QuickDefaultDisable ctermfg=245 guifg=#928374
+		hi! QuickDefaultHelp ctermfg=109 guifg=#83a598
+	elseif a:theme == 'solarized'
+		hi! QuickDefaultBackground ctermfg=0 ctermbg=13 guifg=#073642 guibg=#839496
+		hi! QuickDefaultSel ctermfg=8 ctermbg=0 guifg=#eee8d5 guibg=#586e75
+		hi! QuickDefaultKey ctermfg=13 guifg=#cb4b16
+		hi! QuickDefaultDisable ctermfg=11 guifg=#586e75
+		hi! QuickDefaultHelp ctermfg=7 ctermbg=8 guifg=#268bd2
+	elseif a:theme == 'papercol'
+		if &background == 'dark'
+			hi! QuickDefaultBackground ctermfg=0 ctermbg=13 guifg=#c6c6c6 guibg=#303030
+			hi! QuickDefaultSel ctermfg=8 ctermbg=0 guifg=#303030 guibg=#c6c6c6
+			hi! QuickDefaultKey term=bold ctermfg=10 gui=bold guifg=#d7af5f
+			hi! QuickDefaultDisable ctermfg=11 guifg=#808080
+			hi! QuickDefaultHelp ctermfg=7 ctermbg=8 guifg=#585858 guibg=#1c1c1c
+		else
+			hi! QuickDefaultBackground ctermfg=0 ctermbg=13 guifg=#444444 guibg=#d0d0d0
+			hi! QuickDefaultSel ctermfg=0 ctermbg=7 guifg=#d0d0d0 guibg=#444444
+			hi! QuickDefaultKey term=bold ctermfg=4 gui=bold guifg=#d70087
+			hi! QuickDefaultDisable  term=bold ctermfg=1 guifg=#878787
+			hi! QuickDefaultHelp ctermfg=7 ctermbg=8 guifg=#b2b2b2 guibg=#eeeeee
+		endif
+	else
+		let s:fname = s:home . '/' . a:theme . '.vim'
+		if filereadable(s:fname)
+			exec "source " . fnameescape(s:fname)
+		else
+			call QuickThemeChange('')
+		endif
+	endif
+endfunc
+
+let s:theme = get(g:, 'quickui_color_theme', '')
+call QuickThemeChange(s:theme)
+
 
 " hi! QuickDefaultSel ctermbg=
-if get(g:, 'quickui_color_pmenu', 0) != 0
-	call s:hilink('QuickBG', 'Pmenu')
-	call s:hilink('QuickKey', 'Title')
-	call s:hilink('QuickOff', 'Comment')
-	call s:hilink('QuickSel', 'PmenuSel')
-	call s:hilink('QuickHelp', 'WarningMsg')
-else
-	call s:hilink('QuickBG', 'QuickDefaultBackground')
-	call s:hilink('QuickKey', 'QuickDefaultKey')
-	call s:hilink('QuickOff', 'QuickDefaultDisable')
-	call s:hilink('QuickSel', 'QuickDefaultSel')
-	call s:hilink('QuickHelp', 'QuickDefaultHelp')
-endif
+call s:hilink('QuickBG', 'QuickDefaultBackground')
+call s:hilink('QuickSel', 'QuickDefaultSel')
+call s:hilink('QuickKey', 'QuickDefaultKey')
+call s:hilink('QuickOff', 'QuickDefaultDisable')
+call s:hilink('QuickHelp', 'QuickDefaultHelp')