Goal: set vertical metrics so that caps are perfectly vertically-centered.

This was done by setting the OS2TypoAscender and HheaAscender to 950, which sets the default "text" box in most apps so that the top is 250 units away from the cap height, which mirrors the value of 250 away from the baseline, set by descenders.

The winAscent value wasn't changed, because it should stay larger to prevent diacritics from being cut off in apps such as MS Word. (This still needs further testing).

https://github.com/arrowtype/recursive/blob/7f44c38836fbce2f368a3322ee005471c802f851/src/01-shell-scripts-for-sources/metrics/set-v_metrics.py

The images below show the result of the changed vertical metrics in the default layout of Recursive in Sketch, on macOS. This uses CoreText, the default text rendering on Mac, so the results will be similarly improved in apps like Keynote, etc.