Plus42 Equations, Preview Release

[Thomas Okken]

First stab at the new skin is here: gif, layout.

This is for mobile only, it's too large for most PC screens. It looks a bit skinny or squished on my iPhone 8 (skinny if Maintain Aspect Ratio is on, squished if it is off), but it's probably better on newer smartphones with their taller screens. If not, I can move the keys closer together and shave a bit off the bezels.