Felt pens | Simulates different Felt pens. This tool is (very) multiplying. | Like the Pencils this tool can be used to add dark details. |  |
Brush | Nice natural look. Stroke looks like the brush is made of hair. Variants include different 'hair' size and dryness of the paint. | If you want an oil paint check this tool, it is nice. A bit hard to control though. |  |
Artist | Strange tool. The example image speaks for it self. | Not too useful though. Seurat variant can be nice for creating color variation on ie. human skin. |  |
Water color | Neat watercolor effect. The paint have to be 'dryed' from the Canvas menu before you can use other tools together with Water colors. | Hard to use for anything else than Water color simulation. |  |
Image hose | Places images where you paint. Choose image from the Nozzle sub-palette in the Art material palette. | This is cheating :-) |  |