Press space or click the green flag to generate a Clan that is both genetically sound and has names that make some amount of sense. You may have to go to "See inside" to expand the lists, if all the descriptions aren't visible. While most names should more or less work with the cat's appearance, the generator isn't perfect. Name-change names may end up sounding a little weird (e.g. Onethroat, Threeeye), because I can't guarantee a good match. It is also possible to get a name that doesn't quite line up with appearance, such as a solid cat with the -stripe suffix or a cat with a patched prefix not having any white.
Suffixes are a combination of some canon suffixes, as well as some of my own. Most of the prefixes were taken from Ailuronymy's list, with a few of my own addition. I'm afraid I didn't include all the possible appearances for cats. I wanted to keep things reasonably simple to code, and it may have made predicting prefixes more difficult. There is a population-counting variable, but it disappears behind the lists whenever I save the project. The positioning of the lists also misbehaves regularly, so I'm sorry about that. v1.0 can be found here: https://scratch.mit.edu/projects/99158892/