Allow to change the font size
I could never find where I could change the font size. The default font size is pretty small on my computer. This is a strain on eyes
Laura Haglund commented
Yes, even for someone with perfect vision it could be hard to use. I love the different perspectives it gives, but its usability is extremely hampered by the tiny font. I think the best way to overcome this would be to offer the ability to zoom in and out, perhaps with a panning function to drag the viewing area using the mouse.
With this added flexibility, it could be one of my favorite things!