3 Show major-mode with icons on mode-line.
7 - support many programming languages
8 - support show extra of some modes like: Clojure, Ruby, Python etc.
9 - only show icon for current selected window, otherwise show mode name.
13 If you use `use-package`:
16 (use-package major-mode-icons
19 (major-mode-icons-mode 1))
22 If you use a customize mode-line:
29 (major-mode-icons/show))