Help with Theme editing

I’ve created a custom theme using the Clear Theme as a template. My main purpose for this project is to create an easy to use (wife Approved) interface for our iphones. I’ve got it looking how I would like, but I have a few issues.

#1- In the mobile HA app, the text/icons at the top and icons at the bottom are white, and are nearly invisible with the theme.

#2 - All the linked text in the LogBook is white and nearly invisible

#3 - Text for devices like the Apple TV is white and invisible when the background is light

#4 - This is more of a preference, and not overly important. Is it possible to change ONLY the background of the Title Bar (where it says “Home Assistant”) without changing the main background.

Any help with these issue would be greatly appreciated