Restores the blue theme of the buttons bar
目前為
In july 2020 Gmx changed the color scheme of the buttons bar from blue to gray (like web.de). This modification was applied to all gmx webmails domains ( .net, .com, .fr, .es, ... ).
This stylesheet restores the original layout. It is the exact style, and was recovered from a backup I've made earlier this year.
It works on: gmx.net, gmx.com, gmx.fr, gmx.es, gmx.co.uk, gmx.at, gmx.ch (not tested)
gmx.net gives you the choice of the layout color scheme. This fix works only on the default layout.
