Graph background highlighted every 5th and 10th line

[kacago22]

I'm a math teacher and I use xournal++ for 30 hours a week in class. I often draw lines and / or rectangles while snapping to the grid of the graph background. It would be very useful if there would be a standard graph background where every fifth and tenth grid line would be slightly highlighted. That I could draw longer lines of exact length without having to use the ruler. Thanks for considering this.

[rolandlo]

I agree that would be useful.