Changing the colour of the country borders.

Hello
An old piece of unhappyness with me is the colour of the country boundaries. This light yellow. The most inconvenience are the main roads which are also in yellow.

I wonder if there is a possibility that I can colour the roads to my choice, possibly all other roads as well?

Welcome to the forum, Ueli de Chueli !

Maybe someone knows better, but I do not think that's possible in Google Earth.

Willi is right, that is a fixed part of GE. I, too, have been annoyed more often than I can count by the similar color of roads and borders! As I recall, the road lines are wider than the border lines, making for further confusion, at least for me. 

The only user-changeable line is the "Path" feature on the toolbar, at the top of the screen.

Thank you for your response.

Do you have any idea where I could send a nice suggestion to?

hi Ueli! 
old dream of mine is something similar, just it is about the roads layer transparency (visibility of low class roads from higher altitudes)... (still I am waiting)

well, you should do a try at GMaps&Earth Help Forums.
probably there someone knows a rigged-beta version with adjustable border colors.
best!
g