Extensions and sources
Titles come from sources, sources come in extensions, and extension stores list the extensions you can install.
Stores made for Mihon, Aniyomi or LNReader are added the same way. Extension compatibility lists which of their extensions Katari loads, and what changes for stores that don't sign their extensions.
One extension can supply comics, video and books. To see only the kinds you want, select the filter button and pick them under Content types.
When titles in your library come from extensions that aren't installed, such as after a restore or on a newly synced device, the Library and the Extensions tab say how many titles need one. Review opens Install extensions, which lists each as Ready to install, Installed, not trusted here or Can't install here.
Katari runs an extension straight away when it is signed with the key of a store you added. One installed some other way shows as Untrusted until you select the shield beside it and confirm with Trust.
That trust covers one version only, so each update of such an extension asks again. Settings › Advanced › Revoke trusted unknown extensions takes it back from all of them.
In Browse › Extensions › ⋮ › Extension stores, select the delete button beside the store and confirm. Extensions you installed from it keep working, but they show as Orphaned and get no more updates.
