Hello, I come from Kubuntu, I have three days with Netrunner and I love it, I wanted to know where could I change the information pop up display when mouse hovering buttons, there’s a screenshot about what I’m talking about, it is really bothering these colors were a terrible choice.
System Settings - Application Appearance - Colors
¬¬ Obviuosly 
but what is the specific parameter, I’ve changed many color patterns but it stays the same. Thanks.
There is also a tab “Colors” under the “Color” section that lets you change any single color, look for Tooltip Background and Tooltip Text.