Make draggable separators more obvious?

[gr5]

One line of code resulted in the other 2 separators thicker and more visible. What do you think?

I want users to know that they can make the two side dockable windows bigger or smaller. Otherwise they may be using the right dockable window much smaller than needed. I'm still trying to make the default for the right window a bit bigger without changing the minimum.

What do you think of the look? I thought the teal separators was ugly at first but now I like them.

By the way, even though it took me a few hours to get to this point, google ai saved me so much time searching for solutions, where in the past, I would have used stackOverflow.

[githubdoe]

Looks ok to me.