I do not think that there is simple syntax like in classic, the easiest way I know is using the link widget, which is the equivalent of using html a tags for internal links. Something like this should work:
<$link to=TiddlerName>[img[alt textIimageTiddler]]</$link> As an example, putting <$link to=HelloThere>[img[This is alt text|Motovun Jack.jpg]]</$link> into tiddlywiki.com will display the image of Motovun Jack that acts as a wikilink to the tiddler HelloThere. Motovun Jack.jpg is the name of a tiddler that contains the image, not the path to the image. You can put a path to an image there but you need the whole path starting with http:// or file:// depending on if it is online or a local image. -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/56a920bf-0355-4f84-98cf-893ff31bec23%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

