hamburger menue

Hi Anders,

I would like to modifiy the hamburger icon to 3 horizontal lines and enlarge it a little. In addition to that I would like to enlarge the font size and the line space of the menue points in mobil. Is there a simple way to do this?

Thank you for your help and the great TOVE Theme. I really like it. And its fun to try out full site editing with TOVE.

Frank