yunohost_tera_theme/custom_overlay.css

/*
===============================================================================
 This file may contain extra CSS rules loaded on all apps page (*if* the app
 nginx's conf does include the appropriate snippet) for the small YunoHost
 button in bottom-right corner + portal overlay.

 The yunohost button corresponds to : #ynh-overlay-switch
 The yunohost portal overlay / iframe corresponds to : #ynh-overlay

 BE CAREFUL that you should *not* add too-general rules that apply to
 non-yunohost elements (for instance all 'a' or 'p' elements...) as it will
 likely break app's rendering
===============================================================================
*/

#ynh-overlay-switch {
  /* FIXME : idk if this is an issue or not to have /yunohost/sso hard-coded here */
  background-image: url("logo_tera_simple.png");
  border-color: #dbdbdb;
  background-color: #dbdbdb;
  opacity: 0.9;
  border-radius: 20px;
}

#ynh-overlay-switch:hover {
  border-color: #bababa;
  background-color: #bababa;
}