How I can edit the colors in the area of free throws?

I would like to change the colors of the court.
For example the colors of the area free throws, change the colors of the wings.
Any program to do that?
Thank you...

Quisiera cambiar los colores de la cancha.
Por ejemplo los colores de la zona de tiros libres, cambiar los colores de los costados.
Algun programa para hacer eso?
Gracias...

English only in the NLSC Forum, FYI.

I believe JaoSming's tutorials cover this.