There are a wide variety of different kinds of paint so there is no single answer to this question; a good rule of thumb would be to use the solvent's flash point.
There is a rectangle under the basket on the court. That area is considered the paint, and obviously any points scored in that area would be considered 'points in the paint.'
It is the lowest temperature at which a flammable liquid can receive an ignition source and be ignitable. However, once the ignition source is removed, the flammable nature may cease and the flame...