The color for the lines is in one of the FSH files. If you want the colored lines in the ebo editor to show, you will have to make the texture transparent.
I was probably wrong. I haven't edited courts much. I think you should set the line-color in the ebo editor to gray, and then make the lines in the fsh file the color you want.
Thanks man, but it didn't work either. I can't change the colour in the fsh file. any other colour besides red is not recognized I hope someone else can help