Hello,

Strange. I did not encounter the bug.
I tried installing CDT-for 3.7a-5707 to an updated 5816 image. It works.

I temporarily put the image. So please check it. 
ftp://swikis.ddo.jp/tmp/CDT/Squeak3.7a-5816-testCDT.zip

> If you take a bare 5816 image and install ColorDevTools for 3.7a, it
> destroys your ability to use any browser with a list in it.
> 
> To produce the bug:
> 1. Install ColorDevTools 0.1a for 3.7a-5707.
> 2. Now, go to the tools flap and drag out a browser.
> 
> Taking a closer look at PluggableListMorph shows that some methods dropped
> off of the accessing category.  Bringing them back from a 5764 image with
> ColorDevTools fixes the crashing browser.  However, the ColorDevTools
> effects in the changes browser doesn’t work any more.  It works just fine
> in the 5764 image.
> 
> Any ideas?
> Tap

Cheers,
---
[:masashi | ^umezawa]