Honestly, the empty edition is PRETTYR DARN EMPTY.
Going to https://tiddlywiki.com/empty, and using Advanced Search > Filters: [all[tiddlers]]
gives us:
$:/library/sjcl.js
$:/boot/bootprefix.js
$:/boot/boot.js
$:/boot/boot.css
$:/core
$:/isEncrypted
$:/themes/tiddlywiki/snowwhite
$:/themes/tiddlywiki/vanilla
$:/temp/info-plugin
$:/status/RequireReloadDueToPluginChange
$:/StoryList
$:/HistoryList
$:/state/advancedsearch/currentTab
$:/state/tab--1498284803
$:/temp/advancedsearch/input
$:/temp/advancedsearch
All System Tiddlers created on startup, the current themes, etc.
So, you could add this tiddler to your wiki
tags: $:/tags/Macro
title: Macros/EmptyTiddlers
\define empty-tiddlers()
$:/library/sjcl.js
$:/boot/bootprefix.js
$:/boot/boot.js
$:/boot/boot.css
$:/core
$:/isEncrypted
$:/themes/tiddlywiki/snowwhite
$:/themes/tiddlywiki/vanilla
$:/temp/info-plugin
$:/status/RequireReloadDueToPluginChange
$:/StoryList
$:/HistoryList
$:/state/advancedsearch/currentTab
$:/state/tab--1498284803
$:/temp/advancedsearch/input
$:/temp/advancedsearch
\end
and then run an Advanced Search Filter as so:
[all[tiddlers]] -[[Macros/EmptyTiddlers]] -[enlist<empty-tiddlers>]
This now only returns some popup and state tiddlers created while editing this setup in the Empty wiki, and should return all user added tiddlers in any other wiki. Tested and works on the main tiddlywiki.com site.
Enjoy!