Themes - Color - Table Line Colors - Icons - Font

Looking to find out the following:

  1. How to change application table line colors on a dark theme. See in image below how one table has white lines and other is devoid of line color?? why tho, pepe the frog face
  2. Any way to change the icon colors in the repository? Make input icons a little brighter
  3. Manual screen, text size. So Small, any way to adjust?