Item Tags

Item tags are internal metadata, like Item quality, that were added in Repentance. The tags are used to create groups of items which are used in a few different ways.

Examples

 * Planetarium uses items tagged stars for its unlock condition.
 * The Lost's Birthright rerolls items tagged nolostbr.
 * Tainted Lost can only find items tagged offensive.

Tags
For now friendly names are defined in module data.