Let me ask you two questions.
One is that the coordinates are displayed at the left end when drawing the figure. Is there a way to hide it?
The other is about the setting item "IsView"
It seems that the settings have stopped working.
(If you delete the toolbar itself, you will not be able to edit it, but just in case)
You can hide the coordinates by adding the following CSS.
.coordinate{ display: none; }
Also, if IsView is true, it is correct that the toolbar is not displayed. I will release a modified version.
I have updated the app. Please confirm it.