Go to the directory X:\Steam\Skins and create a new directory Green
In the directory X:\Steam find the folders Resource, Steam and Servers and copy them (not move) to X:\Steam\Skins\Green
Edit the file X:\Steam\Skins\Green\Resource\TrackerScheme.res
Search for EngineFont(Say-Text) and change the font-type(name) and -size(tall) (yres specifies in what resolution the font is used)
"EngineFont"
{
"1" (640x480)
"2" (800x600)
"3" (1024x768)
"4" (1280x1024)
"5" (1600x1200)
"6"
"7"
}
Search for Legacy_CreditsFont(Plugin-/BuyMenu-Text) and change the font-type(name) and -size(tall):
"Legacy_CreditsFont"
{
"1"
"2"
}
Save the changes and start Steam and change to the new skin Green