Switch Wezterm color scheme

templates/wezterm/includes/colors.lua.j2

@@ -13,23 +13,12 @@ end
 
 local function scheme_for_appearance(appearance)
   if appearance:find 'Dark' then
-    return 'Dark'
+    return 'Github Dark'
   else
-    return 'Light'
+    return 'Github'
   end
 end
 
 return {
-  color_schemes = {
-    ['Dark'] = {
-      background = 'rgb(41, 46, 50)',
-      foreground = 'white'
-    },
-    ['Light'] = {
-      background = 'white',
-      foreground = 'black'
-    },
-  },
-
   color_scheme = scheme_for_appearance(get_appearance()),
 }