A simple Google Image search will show a lot of icons related to "Undo & Redo", and interestingly, most of them, if not all are round. Take a look at the ones Microsoft Office uses: And some o
How to reduce user confusion between my Undo button and Android's Back button? - User Experience Stack Exchange
Android Studio - Add Undo and Redo buttons to main toolbar - 3.2.1 update - Stack Overflow
vue.js - Quill is not working with vuejs and showing arrow image - Stack Overflow
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Release History
discovery - Do unique icon contours help people scan? - User Experience Stack Exchange
WebIQ Manual - WebIQ Designer
buttons - Original design choice of back and forward directions? - User Experience Stack Exchange
buttons - Inline edit icon vs Go to edit page edit icon - User Experience Stack Exchange
buttons - Inline edit icon vs Go to edit page edit icon - User Experience Stack Exchange
Undo Redo Buttons Stock Illustrations – 281 Undo Redo Buttons Stock Illustrations, Vectors & Clipart - Dreamstime
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