Color.module - Questions for themers

I really need the help of the theming community on this one. It has to do with the way color.module fundamentally works and how it works with themes.

The comment here linked me to an implementation of a color-changing theme for joomla. It uses alpha-transparent PNG images and pure CSS to deliver theme changes on the fly. From the looks of it (I do not have an account there yet, but I'll buy one), essentially the layout is comprised solely of CSS and colorless transparent images.

Most of themes for drupal do not use Color.module. However, I believe they could be retrofitted to use color-switching easier/faster if we used this method. There doesn't need to be a script for filling or slicing a base_image - you can use your individual transparent PNG's straight out of shop.

I have a few questions for drupal themers out there:

• Does the idea of having to code a file (color.inc) to slice and fill a color a base image deter you in any way from potentially utilizing it with your themes?
• Do you think that there is more potential that slicing/filling through color.inc can have to enable themers?
• Would you, as a themer grasp the concept of using alpha-transparent PNG's in your layouts? Would this make life easier or harder?
• If you had a choice between the rockettheme-method (transparent png and CSS filling) and the old school way ($base_image, filling and cutting) which way would you go?
• Is there anything that you can do through the "scripted method" of color theme generation that you would not get from CSS with a transparent PNG overlays?
• Certain older browsers do not support alpha-transparency, and for them the only way they can see those colors is through the generated-image method. What about them?
• Is there anything else that isn't mentioned here that should be? Benefits? Problems? Ideas?