Floorplan state-label

Hello, I am new here. I tried searching for a solution but unfortunately found nothing.

First, I tried solving the problem with ChatGPT and various other AIs, but without success. So, I signed up here, hoping for some help.

I’ll try to explain my issue:
I created a floor plan using Sweet Home 3D, then rendered it with the Home Assistant plugin and uploaded everything to www/. Everything works fine so far.

However, I’ve been trying for three days to remove a shadow from the state label, but I just can’t get it to work.

Here are also some pictures so you can see what I mean.

When I click on the number, this shadow appears. I would like to remove it.
I really hope that someone can help me.
Thank you for your time!