This patch adds different kind of shapes/styles for the line extremes while using the annotation line tool.
Current Styles: (following @mendio mockup)
- Arrow (closed arrow)
- Open Arrow
- Segment
- Square
For future it would be great to have icons, it would be more intuitive (and less space) with previews of what each end / start of line does, like the google slides one as reference:
{F8511116}
Reviewed By: #grease_pencil, antoniov, HooglyBoogly
Differential Revision: https://developer.blender.org/D7608
668dd146f6