A simple, dark and compact theme for Threema Web.
This theme can be customized very easily. You can set a base color from which most other colors will be calculated, a text color and some accents. Also, you can choose another background for the chat and set its opacity.
By default, it looks like this:
But if you like it even darker, want other accent colors and no background image, you can also make it look like this:
Or, if you prefer it a little lighter:
And of course, you can go totally bananas as well:
I am neither a frontend developer nor a designer. The CSS might be a total mess and there is much room for visual improvements. PRs are more than welcome!