Is it possible to filter items by Category in a custom item filter?

[Oba22]

The item class page on the official wiki lists all classes with the Item Class name, the Internal ID, but also a Category.

Now using the Category in the item filter rules would be super convenient for me at the moment, but is it even possible? Or is it really necessary to manually list all classes in the said category to achieve the same goal?

[Kadyn]

Sure, the most convenient way is to use FilterBlade in order to achieve all of your filtering needs. This is the most commonly used filter creator that we have.

In the customize section, there are sections for all of the tiers of flasks, armors and weapons and everything else. That is where you'll want to customize your loot filter accordingly.

You can also link your POE account directly to it, so you don't have to save and upload the file manually.