theme: disable mouse over frame coloring/highlightening

[star-buck]

here are two pictures:

in this the focus and mouse hover is above the main dolphin area where icons are shown, so the the inner frame is grey.

when moving the cursor on the icon, the inner fame changes to blue (which it should not, so maybe its simply to set the color to be the same for the inner frame to not visually see the change?):

there are also 3 colors, non highlighted/non-active, highlighted and active:
non-highlighted:

highlighted:

active:

best would be if all 3 colors would be the same grey than the non-highlighted-nonactive

Okay, I found out that for the frame line, James likely used a color scheme:
Uising "Krita Dark" for example has only the highlight color, but active and non-active seem the same.
Whats further nice is that the "extra line" directly below a toolbar seems gone too, aka "color matched".
Compare Breeze Dark

vs Krita Dark: