To edit icon select it on canvas and click edit.

Vector icon edit options/modes:

• Drag - grab a red dot you want to transform and drag, release to confirm.
• Plus Dot - add additional dots on vector paths. Used mostly along with Minus Dot to stop path collapse at certain dots.
• Minus Dot - remove a dot and collapse path to next dots.
• Bezier - grab and drag dots to round paths.
• Arc - click on a corner to round it, click again to round more.
• Draw - draw a path to add to the icon.
• Slice - cut the icon by drawing a line thu, release to confirm.
• Erase - erase icon parts by clicking or dragging and releasing.

To confirm or deny, select a button below canvas - Save icon or cancel edit.

(reference editor)