Tinderbox 4: Shapes
Tinderbox 4 lets you choose different shapes for your notes.
Better still, you don't have to choose: the shape can be chosen, automatically, to reflect what kind of note you're making. Or agents can set the shape to highlight especially interesting or urgent notes.
The repertoire of shapes remains limited — if you want to make a diagram, use a diagram too: using the right tool for the job is a big part of The Tinderbox Way. But shape gives you yet another dimension