Shiraz is a small TW5 plugin contains several macros, stylesheets, templates, snippets and acts as a starter kit for Tiddlywiki.
For dtails on how install Shiraz plugin in your wiki, have a look at https://kookma.github.io/TW-Shiraz/#Install
Subplugins are addons extend the Shiraz features or simplify the use of Shiraz. These subplugins are available from shiraz GitHub repo (https://github.com/kookma/TW-Shiraz)