I believe this has been in an issue since 3 years and I was struggling with this each time I do VFX.
The issue is that you cannot copy any value from “Color” in ParticleEmitter, Beam, or Trail with the “Ctrl + C” shortcut
This leads to my workflow being distrupted and having to manually right click from the context window and clicking “copy”, then moving onto the next instance, and pasting it there.
I’m not sure why this is a bug in the first place considering all the other properties have no issue with copying via the shortcut.
well the double-click function is there because you can click on the 3 dots to edit it on a different way than typing numbers on your keyboard
just get used to the double click on color It is not a bug and more like a feature man