The ''tag'' filter operator returns the tiddlers in the current list that have the tag specified in the operand. Preceding the operator with `!` returns tiddlers that do not have the specified tag.
For example:
|!Filter String |!Description |
|`[tag[mytag]]` |Returns all tiddlers tagged `mytag` |
|`[all[shadows]tag[mytag]]` |Returns all ShadowTiddlers tagged `mytag` |