Andrea - good suggestion:

If I can make a small request based on my taste: put a small frame to

the plugins to distinguish the various bars and not have a homogeneous
mass as you see in the image:

https://i.postimg.cc/WbyrP2Q6/blend-plugins.jpg

Olaf supplied your requested change and it looks good. It will happily go into the builds tomorrow. As I have finally learned, we should use png instead of jpg for better quality pictures as long as upload is not a problem.