A plugin in TiddlyWiki5 is a bundle of tiddlers packaged together as a single tiddler. Plugins are used to distribute optional, custom components for TiddlyWiki and also to package the core components of TiddlyWiki itself.
The tiddlers within a plugin appear as ShadowTiddlers.
Plugins can contain JavaScript modules, style sheets, and templates to extend the functionality of TiddlyWiki itself. Plugins can also be used to distribute ordinary text, images or other content. Plugins can be updated from their source as a unit.
# Open the [[$:/ControlPanel]] and click on the ''Plugins'' tab and then the ''Add'' tab
# Click ''open plugin library'' to open the official plugin library
# When the library listing is loaded:
## Use the dropdown to select between ''plugins'', ''themes'' and ''languages''
## Use the ''search'' box to search the plugin details
# Click the ''install'' button to install a plugin
# Save your TiddlyWiki
# ''Refresh the page so that TiddlyWiki loads the new plugin''
# The plugin should now be available for use
! Manually installing a plugin
# Create a backup of your current TiddlyWiki HTML file ([[just in case|The First Rule of Using TiddlyWiki]])
# Open your TiddlyWiki in a browser
# In another browser window, find a link to the plugin, e.g. [[$:/plugins/tiddlywiki/example]]. You will typically find these links on the home page of the plugin (for example, http://tiddlywiki.com/plugins/tiddlywiki/katex/)