- [x] file issue on fontbakery (https://github.com/googlefonts/fontbakery/issues/2419)
- [x] confirm that current approach is fine (https://github.com/google/fonts/issues/1460#issuecomment-476713822) (seems okay, based on Hangouts discussion)
* ⚠ **WARN** Even though unitsPerEm (1000) in this font is reasonable. It is strongly advised to consider changing it to 2000, since it will likely improve the quality of Variable Fonts by avoiding excessive rounding of coordinates on interpolations.
- [x] run script to correct vertical metrics, recheck
- [x]~~add issue~~ issue exists to gf-docs to update vertical metrics to recommendation at https://github.com/googlefonts/fontbakery/issues/2164#issuecomment-436595886 (will track / manage separately)
* 🔥 **FAIL** The following glyph names do not comply with naming conventions: ['numbersign_numbersign_numbersign.liga', 'numbersign_numbersign_numbersign_numbersign.liga', 'numbersign_underscore_parenleft.liga', 'backslash_backslash_backslash.rem', 'numbersign_numbersign_numbersign.liga.rem', 'numbersign_numbersign_numbersign_numbersign.liga.rem', 'semicolon_semicolon_semicolon.rem', 'quadrantUpperLeftAndLowerLeftAndLowerRight', 'quadrantUpperLeftAndUpperRightAndLowerLeft', 'quadrantUpperLeftAndUpperRightAndLowerRight', 'quadrantUpperRightAndLowerLeftAndLowerRight', 'whiteSquareWithUpperLeftQuadrant', 'whiteSquareWithLowerLeftQuadrant', 'whiteSquareWithLowerRightQuadrant', 'whiteSquareWithUpperRightQuadrant', 'asciitilde_asciitilde_greater.liga', 'ampersand_ampersand_ampersand.rem', 'asciitilde_asciitilde_asciitilde.rem'] A glyph name may be up to 31 characters in length, must be entirely comprised of characters from the following set: A-Z a-z 0-9 .(period) _(underscore). and must not start with a digit or period. There are a few exceptions such as the special character ".notdef". The glyph names "twocents", "a1", and "_" are all valid, while "2cents" and ".twocents" are not.
- [x] uncheck "Retina" instance as `is active` instance
- [x] file issue with FontBakery to ask Dave/Marc about this `450` weight "Retina" instance (https://github.com/googlefonts/fontbakery/issues/2420)-
- [x] change if you find a better approach to keep Retina without disrupting builds / Regular weight
- To set up the instance in GlyhpsApp such that it exports a font as expected: "Retina" gets a custom parameter of `weightClass: 450`, and a glyphs menu-weight of "Normal." Tested in axis-praxis, it seems to work well. All instances have a `weightClass` custom parameter.