highlight

(use-package rainbow-delimiters         ; Highlight delimiters by depth
  :ensure t
  :defer t
  :init
  (dolist (hook '(text-mode-hook prog-mode-hook))
    (add-hook hook #'rainbow-delimiters-mode)))

(use-package hi-lock                    ; Custom regexp highlights
  :init (global-hi-lock-mode))

(use-package highlight-numbers          ; Fontify number literals
  :ensure t
  :defer t
  :init (add-hook 'prog-mode-hook #'highlight-numbers-mode))

(use-package rainbow-mode               ; Fontify color values in code
  :ensure t
  :bind (("C-c t r" . rainbow-mode))
  :config (add-hook 'css-mode-hook #'rainbow-mode))