Hi all,
I'm trying to recreate the macro that allows you to do this kind of thing:

by writing <<.warning "does this work">>.
I've already imported the warning image with the same title tiddler ($:/core/images/warning) and I've found the macro definition around the system tiddlers in the original tiddlywiki documentation:
\define .warning(_) <div class="doc-icon-block"><div class="doc-block-icon">{{$:/core/images/warning}}</div> $_$</div>
Problem is I don't know how to make them work. I tried saving this macro in $:/editions/
tw5.com/doc-macros, I've tried changing the title, but nothing works. I suspect I'm missing something. Can anyone help?