The filter Wiki was originally created to document Rainbow filter
config UI. However, I think the majority use case now is to
manually edit the filter config files. There is no good
documentation on how to do this, although sometimes you can get
enough info from the wiki to do what you need to do. I am
constantly finding "hidden" parameters. Usually I can glean how to
use them from the code, but in some cases their usage is still
IMHO it should be in the same wiki as the UI descriptions and closely related to the individual parameter descriptions. Just not sure on the best way to do this.