Here is the fist thing I checked (see below image) with SW2016 sp5 and they DID it - ThankS
I just wanted to let you know that we are aware of the bug. The mouse gesture text shouldn't be pickup up its color from the UI background setting. Unfortunately, I don't have a fix target release to announce. But please do know we are are aware that it needs to be fixed.
I now have target release info for the fix to Mouse Gesture text for you... this is fixed in SOLIDWORKS 2017 Beta 3 (available mid-August) as well as SOLIDWORKS 2016 SP05 (early visibility mid-September, available mid-October).
I have seen the fix in our development builds, and the Mouse Gesture text is now identical to what it was in SOLIDWORKS 2015 (and earlier) regardless of the background setting.
and here is what I got: