However the same limitations as with any print medium exists in that more colors and more brilliant colors can be seen in a monitor than can be reproduced on paper and on mugs. Colors that can be seen in a monitor are based on the RGB color scheme while for printing purposes the color scheme is CMYK.

Thus if you send us digital art that you see in the RGB mode, it will not necessarily print the same in the CMYK mode and it will be less brilliant than seen on the monitor. (Your monitor shows your digital art similar to a dia positive (slides) while our mugs are more similar to a photo print.)

It is also a good idea when planning the creation of digital art for mug decorations to hold the solid black areas (or any large areas with any solid color) to a minimum as a large area of a given color is not the easiest to reproduce without producing some inevitable streaking effects. Many experienced designers overcome this handicap with the use of special effects that "blur" larger areas of black and spot colors.