Add more ruled paper options
1) wide & college-ruled backgrounds with a light red vertical line on the left side about 1" from the edge, and
2) wide & college-ruled backgrounds with a light red vertical line on the left side about 1" from the edge plus a lighter red vertical line on the right side about 1" from the right edge.
Manually drawn lines are vulnerable to erasure.
i love this idea
Dark paper and blue paper are also very important!
Please include French workbook lines and Chinese character workbook lines too!
Mahmood Jazmawy commented
I faced the same problem I had a work around where I manually drew lines then took a screenshot and put it in a page as an image not ideal but better than dealing with deleting lines.
but still they have to work on it