vim: colorscheme & minor tweaks (#1)

vim/.config/vim/vimrc

@@ -11,7 +11,7 @@ set textwidth=89
 set nowrap
 
 " Wrap at word boundaries
-" set linebreak 
+" set linebreak
 " Maintain indentation on wrapped lines
 " set breakindent
 " Optional: visual indicator for wrapped lines
@@ -36,6 +36,7 @@ set backspace=indent,eol,start
 
 set background=dark
 colorscheme theunixzoo
+"colorscheme chill
 "colorscheme plain-cterm
 "colorscheme aomi-grayscale
 "colorscheme solarized8
@@ -119,6 +120,23 @@ let g:copilot_enabled = 0
 " map key to enable copilot
 nmap <leader>cp :let g:copilot_enabled = 1<CR>
 
+def ShowPalette()
+    vnew
+    setlocal buftype=nofile bufhidden=wipe noswapfile
+
+    # Iterate through all highlight groups
+    for group in getcompletion('', 'highlight')
+        # Skip cleared/empty groups
+        if hlexists(group)
+            append(line('$'), group)
+            # Use syntax keyword to apply the highlight group to its own name
+            exec 'syntax keyword ' .. group .. ' ' .. group
+        endif
+    endfor
+enddef
+
+command! ShowPalette call ShowPalette()
+
 " format any yaml file
 " autocmd BufWritePre *.yaml :%!yq -i %