you're welcome since others here are looking for LED strip recommendations - could you post a link where you bought them and if you are satisfied with the quality and brightness P.S.: Frohe Weihnachten nach München :-)
sorry for the late reply. I spent a lot of time configuring Dreamscreen... First I had the WS2813. Unfortunately, there were errors like flickering or single LED's hanging on the yellow color without switching. Then I switched to SK6812. The performance is great. No more bugs but the colors and brightness were a lot better with WS2813.