Heather, I'd say up to 10, but I've seen 15 color changes out there. I like colorfull designs(teacher thing :D), but I know how much trouble is changing threads in one single design. I also try to keep the connections in the same spot or close to the next area or color change. But, don't forget, I'm just a learner, maybe a great digitizer on Cute can make a good advice on it. :) Blessings&hugs, Yoriko

As least as possible form 10 to 15 as Manami said. But with some designs it will depend of how many details you have. I have designs that have as many as 30 color changes and although is a pain the final results are worth the color changing.

Great question, and answers, but I'm bringing this back to the top so we can hear from more of the digitizers. I to am still a beginner and would like to know more about putting in shading and such.

ttt

I think that is really up to you. But I think a great alternative to a lot of colour changes would be the use of variegated thread.They look very effective on line work.

Here's what Heather digitized. Nice job**

Now that I really know what her question was about, my advise is to keep it simple. Think in terms of a small box of crayons and have 8 or less colors.

Ya got some good answers...go to a site that has colorlines and see how many they use. I usually see about 4/5 in kitchen ones:)