Coda,
Looks promising, especially to allow users customise the size of images the designer places into the layout. I like empowering people to control their interface.
Here is an experiment or two
Not working, needs jpg
<div contenteditable>
{{p3CogsGraphicshrink.png}}
</div>
Displays SVG bay resize not working expected
<div contenteditable>
{{$:/core/images/advanced-search-button}}
</div>
Works well, but need jpg images types.
<div contenteditable>
{{parchment.jpg}}
</div>
Thanks for the suggestion
Have you tried other forms within tiddlywiki?
Tony