Post #1883904

@drawBot `overlay-proof` – set the same text in two fonts and overlay it (with some tricks to get vertical metrics and line content to match up). Great to compare old and new versions of the same design. For example, in Covik Mono only the “?” changed from version 1.0 to version 1.3. Nichrome Regular on the other hand was completely re-defined from version 0.1 to 0.6. (The proofing text consists of random sentences from Moby Dick, so it’s not an exhaustive comparison.)