In today's Group-Office 6.7 release we've made some changes to the user interface themes. You can now select between these modes:
- System (set by OS)
These settings make the Dark theme obsolete, this was a dark variant of the Paper theme. We also made a dark color schema for the Compact theme so you can still turn the lights off when working on a smaller screen.
The new theming mechanism uses CSS variables therefore it can hot-swap the colors without reloading the page. This is especially useful when you are using the "System default" option. Let's say your OS switches to dark mode at 20:00, Group-Office will switch as well without needing to reload. 😎