What kind of coloring do you use gel or airbrush?

If using gel do you dilute it to a paint consistency?

Can someone post a picture of the kind of (proper) brush you use? TIA

HI! I have painted on zebra stripes onto a cake in the past. I dilluted the food color with a little bit of alcohol (it will evaporate quickly). It stayed tacky for a short time but was dry by morning for me. I hope this helps!!

Thanks Lizzard1, I didn't know it stays tacky. What kind of paint brush did you use

I used Americolor super black, and painted it on full strength. It dried pretty quick. I used a script liner brush, something like this: http://www.stuff4painting.com/size-2-soft-grip-golden-taklon-script-liner-brush-sg585-2.html?CAWELAID=600774560