Setup
- OS X 10.8.2
- Versions 1.1.11
- Kaleidoscope 2.0.0
Problem
I am a registered user (DirectSales, not AppStore) of both Versions and Kaleidoscope (both from BlackPixel). The latest versions of both apps are installed on on my system.
I would like to configure Versions.app to use Kaleidoscope.app as its diff tool.
However, when I go to
Versions.app > Preferences > File Comparison
I see Kaleidoscope grayed out with a generic icon (see screencap below). Since both apps are from the same developer, I think I must be missing something obvious, or there may be a problem with my system.
So: How to select Kaleidoscope.app as the diff tool in Versions.app?

Install the ksdiff tool