Like Kali, Taprats is a Java program. it is designed to produce Islamic tiling similar to those seen in the Alhambra. It can also produce under and over patterns in the Celtic style and embossed styles too - see 'software used' on left.
Unfortunately there is no way of saving the patterns it produces which have to be captured and then coloured or texturised in another program. Look at enlargements of the tiled and textured ones as you cannot see detail in the thumbnails. I especially like the 3D lit one done in 'Painter'.