The following icons are from [iconmonstr](https://iconmonstr.com/):

* [pencil.svg](https://iconmonstr.com/pencil-9/)
* [rectangle.svg](https://iconmonstr.com/square-4/)
* [circle.svg](https://iconmonstr.com/circle-2/)
* [arrow.svg](https://iconmonstr.com/arrow-19/)
* [delete.svg](https://iconmonstr.com/x-mark-12/)
* [settings.svg](https://iconmonstr.com/gear-1/)
* [erase.svg](https://iconmonstr.com/x-mark-4/)
* [accept.svg](https://iconmonstr.com/checkbox-21/)
* [cancel.svg](https://iconmonstr.com/x-mark-8/)
