You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
PluginsArea: what it touches
ImprovementsKind: in v2.1.221,
ImprovementsSection of the release
What
The multi-plugin install summary tells you why each installed plugin is not running, and the closing line counts only the plugins that actually came up.
Details
Two separate lists: " Disabled by default — enable in /plugin: " for manifest defaults and " Disabled in your settings: " for the user's own settings.
The active count decides between "Plugins are now active.", "Run /reload-plugins to activate." and " Some plugins couldn't be loaded — see /plugin for details.".
The single-plugin screen carries matching installedDisabled and installedDisabledByDefault view-state fields, derived from the enabledPlugins setting and manifest.defaultEnabled.
Evidence
Disabled in your settings:
Strings lifted out of the shipped bundle, so the claim above can be checked against them.