Changing the color of an area in properties view does not work

[MartinBelthle]

Description

When I go on the "Properties" view of an area, i can change its color.
But this change does not affect the map 😞

Steps to Reproduce

1. Create a study
2. Create an area
3. Go to the properties view and change the color
4. Come back to the map and see that the change did not affect the map.
5. You can try to refresh as many times as you want, it does not work.

Environment

• Production
• Staging

Additional Information

It also applies to variant. It seems that the change is effective in the files (area/ui.ini) but the map does not care.
Also, it is possible to change the color of an area from the map itself and in this case, the change works ... Pretty odd.