Adjusted some of the forum design with a more custom theming:
- Rounded off the buttons and elements like on the website
- Replace the orange highlight color with blue
- Subcategories always have the same color as the main category for simplicity
- Adjusted category sorting
- Did not add the plussy background as it’s very busy and it’s a symbol we wanted to phase out (?)
Anything else that should be corrected? @max.mehl @eal @bjoern @nikos others? 