config-highlight.defC:\Python27\Lib\idlelib\config-highlight.def 를 수정하면 됨
아래 내용을 추가
[desert]
definition-foreground = #98fb98
error-foreground = #ff0000
string-background = #333333
keyword-foreground = #cc6600
normal-foreground = #f0e68c
comment-background = #333333
hit-foreground = #ffffff
break-foreground = black
builtin-background = #333333
stdout-foreground = #eeeeee
cursor-foreground = #ffcc00
hit-background = #333333
comment-foreground = #87ceeb
hilite-background = gray
definition-background = #333333
stderr-background = #333333
break-background = #ffff55
console-foreground = #87ceeb
normal-background = #333333
builtin-foreground = #519e51
stdout-background = #333333
console-background = #333333
stderr-foreground = #ff3e40
keyword-background = #333333
string-foreground = #ffa0a0
hilite-foreground = #000000
error-background = #000000