[Icons] Old icons?

Related to this thread, I would like to know if the following icons that are present in “classic” icon folder are used somewhere or they are old and I should skip them while designing the “modern iconset”:

In case they are used somewhere, could you point me out where?


The first 5 are used to represent ‘cuspids’ for Width Points of Advanced Outline layer.
You can see them when you right-click on a width point.

Great! I get it and I know now what they do so I can now design the icons.

Thank you!

PS - what about the other ones? they look like they are sketches not used yet…