Okay! I never made a patch before or anything so I don't necessarily know the procedure, just wanted to throw in my two cents. Thanks for taking a look!

I think they both look fine, this is just a suggestion because the icons aren't showing up. I tested this a little further and it looks like if a change were to be made it would probably also need to be applied to the breeze gtk theme as the qt breeze colors aren't applied to the gtk counterparts. Another solutions would be to not use monochrome icons in tooltips, or to use the correct ones based on the background color.