The current tooltips in Blender are limited to a single line and often do not provide enough information for the people that need them (new users and/or those that aren't familiar with the tool/option). The tooltips can be dramatically improved with a few things:
- Allow multiple line descriptions
- Allow formatting for breaking it into sections, such as Name, Description, Instructions
- Allow URLs for documentation links
For example, the tooltip for the Knife mesh tool could be:
Cut new topology into mesh
Use by clicking on vertices, edges, and faces to insert new cut lines. Allows multiple cut lines via modal options.