Quote:
When adding own effects you should know about this small rule: If effect has comma in its name, then the part before comma is considered effect type and part after the comma is effect qualifier. For instance Cover, Heavy -- it is Cover effect and Heavy is qualifier. This is useful when writing Ignore effects like Ignore #Cover
In Ignore effects, you can either match full effect like Ignore #HeavyCover or more general one like Ignore #Cover which would apply to any kind of cover.
If you register effects via extension you can define more rules for them that you cannot define in FG UI. For instance, all Illumination effects are defined to be unique meaning that you can also match to their effect qualifier. There are three Illumination effects: Illumination, Dim, Illumination, Dark and Illumination, Pitch Darkness. Because they are registered to be unique then you can match them by just their qualifier ie. Dim, Dark and Pitch Darkness. For instance in Low Light Vision there is effect [Ignore #Dim #Dark]
Note that Cover is not registered as unique because its qualifiers are not that unique (Heavy, Medium, Light)