solid color fill in of shapes
i wish there was an option to not make the fill in of shapes see-through:
an option to select the opacity would be great
I support this. I have an exercise solution sheet. I wanted to cover up the solutions to solve it myself but couldn't use shapes. Stickers ratio cannot be modified so I couldn't use stickers. Trying to put an image to cover it was annoying and I had to cover all solutions by striking it out with the pen. It took my time and it looks very ugly.