control calendar colors in iPhone 2.0

iPhone 2.0 lets you see multiple calendars in different colors. However, unlike iCal, you can't chose which calendar is which color. Here's a way (sort of) to select specific colors for specific calendars. 

The calendar app displays calendars in the following colors: red, orange, blue, green and purple, assigning them seemingly at random. However, if you add your calendars one at a time, syncing after each addition, they will be assigned in the order listed above. 

I created dummy calendars in iCal so I could "skip" a color. Just sync them in the proper position in the rotation, and delete them when you're done syncing all your calendars. Calendars won't change color after you've synced them onto your phone if you delete a previous one in the sequence.