[login image] enhanced login rebranding

Hi !

Just a little idea for rebranding the login page wich is, by default, so... how to say.... ugly is that the word ?

Well, a little section in "settings" would be great for :

- Apply the theme style to the page
- or manually change background image, colors, ad a message, or welcome text, add zone...

well something cool hue :slight_smile:

Yes I know I can hardcode it. But a "select background login page image" option would be so sexy :wink: