kitchen sink cause I'm too lazy to sort through this junk

lua/core/highlight.lua

@@ -1,4 +1,5 @@
 local highlight = function(group, opts, space)
+  if not pcall(require, "mellow") then return end
   space = space or 0
 
   if type(group) == 'table' then
@@ -10,7 +11,7 @@ local highlight = function(group, opts, space)
   end
 end
 
-local c = require('mellow.colors').dark
+if pcall(require, "mellow") then c = require('mellow.colors').dark end
 
 -- vim highlights -------------------------------------------------------------
 highlight('CursorLineNr', { bg = c.bg_dark, fg = c.fg,  bold = true })