Is there any way to get rid of the opaque stripes? (See screen shot.)
That’s the System Track. Useful at times, often not needed. Alt-T to show or hide.
It’s the System Track, if you want to check the documentation to find what it is useful for.
But it isn’t very useful to display it when you aren’t using it.
I agree that is useful, but I’m glad that I can hide it in certain situations such as the one in the Screenshot.