I need a graphics package which will allow me to create a block of colour with a lighting effect at the top or in the corner or somewhere else.
E.g. for a black block and with the light source at the top, the square would be grey at the top and gradually become darker towards the bottom.
Ideally, the package would be free :-) but I don't mind shelling out a few dollars if it is fairly decent. It'd have to be downloadable though as time may be tight on this project.