Fenix 7X Saphire Solar-> bad map display since 18.16

Hello everyone,

I have a few Garmin devices which I use almost exclusively for navigating my mountain bike, mainly the Fenix 7X Saphire Solar.

Since the update to 18.16, the map display has deteriorated drastically with the original Topo maps supplied.
The forest is now olive-colored instead of green and the paths are no longer black, but gray. On the way, the various paths are simply no longer visible.

Garmin Topo ab 18.16

On your advice, I contacted Garmin Support, but for about 3 weeks I have only been put off.

In desperation, I then also took out a subscription for the Topo+ maps.
But that didn't change the display either. I could have simply saved myself the money.

Does anyone have any tips on what else I can do?
What do your maps look like?