after post it looks like this
i want to make defult font of editer white or light yellow.
please provide any solution
Edit : font color appears to applied from table class in global.css . change color from #000000 to #FFFF80
U r using a plugin by simon.s i suppose.
The settings will be in ur plugin file,
But here is one quick solution give a try.
In your theme global.css
Look for .editor{
Change its color: #000;
To #fff;
This may solve the problem