Pretty meta feeling working on an interface of an interface editor, but still one level milder than working on PhotoShop/Sketch interface, right? :)
On the left side there's an on-boarding state,
which will transform into more ergonomic state (shown on the right side) after adding more screens into the editor.
Font & Button Color icons were a bit challenging, since its background will be changing dynamically with color picker. They ended up getting a small PNG overlay treatment made with black, white & alpha.
Please, check 1:1 real pixels in @2x.