Set up colorizer plugin

lua/core/plugin_config/colorizer.lua

@@ -0,0 +1,37 @@
+-- Attaches to every FileType mode
+require 'colorizer'.setup()
+
+-- Attach to certain Filetypes, add special configuration for `html`
+-- Use `background` for everything else.
+require 'colorizer'.setup {
+  'css';
+  'javascript';
+  html = {
+    mode = 'foreground';
+  }
+}
+
+-- Use the `default_options` as the second parameter, which uses
+-- `foreground` for every mode. This is the inverse of the previous
+-- setup configuration.
+require 'colorizer'.setup({
+  'css';
+  'javascript';
+  html = { mode = 'background' };
+}, { mode = 'foreground' })
+
+-- Use the `default_options` as the second parameter, which uses
+-- `foreground` for every mode. This is the inverse of the previous
+-- setup configuration.
+require 'colorizer'.setup {
+  '*'; -- Highlight all files, but customize some others.
+  css = { rgb_fn = true; }; -- Enable parsing rgb(...) functions in css.
+  html = { names = false; } -- Disable parsing "names" like Blue or Gray
+}
+
+-- Exclude some filetypes from highlighting by using `!`
+require 'colorizer'.setup {
+  '*'; -- Highlight all files, but customize some others.
+  '!vim'; -- Exclude vim from highlighting.
+  -- Exclusion Only makes sense if '*' is specified!
+}