UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.63 Safari/537.36

Steps to reproduce the problem:
1. Theme issues:
1.a. No ability to change the background/foreground color of address bar/text inputs in a theme.
1.b. No ability to change button color in a theme.

2. GTK theme issues
2. No ability to change foreground text of inactive tabs when GTK theme is used.

What is the expected behavior?
Either infer a _proper_ color for the 'non-customizable' UI elements, so that they are readable or allow theme designers to customize such elements.

What went wrong?
1. When a theme is used: any dark theme either has 'white' components to it (address bar/text fields) with no ability to change it.
2. When GTK theme is used: any dark theme has unreadable components (examples: foreground text of inactive tabs, navigation buttons are barely visible).

Did this work before? Yes Chrome 49 did not have an issue with unreadable text of inactive tabs

Chrome version: 51.0.2704.63  Channel: n/a
OS Version: 
Flash Version: Shockwave Flash 21.0 r0

For god's sake these are basic UI design principles...