Mark glyphs with incorrect contour directions

[m4rc1e]

If a mark glyph is used a component in another glyph and its contour orientation differs from the base glyph, the marks will appear lighter in OS X. For this family, I can see that the double grave accent's has this issue (there may be more).

Ȑ double grave appears lighter. Issue also happens in Ѷ ѷ Ȁ ȁ Ȅ ȅ Ȉ ȉ Ȍ ȍ Ȑ ȑ Ȕ ȕ Ȕ

To solve this issue, we must do the following:

• Find all mark glyphs which are used in composite glyphs whose contour directions are incorrect
• Fix the orientation for the mark glyphs we found above
• Rehint the mark glyphs
• Bump version and repush

Imo this is a blocker and we must solve this issue before we can release the family. We discovered this issue whilst reviewing Asap, davelab6/Asap#6

cc @davelab6 @dberlow @moyogo

[dberlow]

According to the sources, (U+030F) reversal includes Roman and italic.

[mikedug]

the contours for (U+030F) , compared to Unicode 0210, look to be the same orientation in VTT in the Roboto Variable. Am I missing something?[]

(url)

[m4rc1e]

the contours for (U+030F) , compared to Unicode 0210, look to be the same orientation in VTT in the Roboto Variable. Am I missing something?[]

If we inspect uni210, the base component "R" is anticlockwise, whilst the mark component "double tilde" is clockwise.

[mikedug]

ok, thanks. I see the R as clockwise and the accent as anti-clockwise, in the illustration above.

[davelab6]

But, either way, they are opposite directions, but they should be the same directions.

@m4rc1e please can you file a fontbakery issue to check for this, and fix Roboto directly.

[dberlow]

If these need to be fixed by FB, let me know.

…

On Thu, Nov 12, 2020 at 10:44 AM Dave Crossland ***@***.***> wrote: But, either way, they are opposite directions, but they should be the same directions. @m4rc1e <https://github.com/m4rc1e> please can you file a fontbakery issue to check for this, and fix Roboto directly. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#86 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAO5VDTU2DZOHCDDDRCWUE3SPP7GBANCNFSM4TR6OGWA> .

[davelab6]

I believe this is a minor production issue, which will take Marc 4-8 hours to do, and so with other high priority FB projects going on, its best for Marc to do :)