[Libreoffice-bugs] [Bug 134454] Font not rendering properly when color is changed on mark glyph.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=134454

--- Comment #6 from a.kalugin at live.com ---
I understand. This font is a bit cryptic and one has to understand the neumes
system/logic. The most simplistic explanation is, characters
[ÂÃÍÎÏÐÖáâãçêëìíîïóö] get anchored to [A-z, a-z]. They will either be
positioned to the west/north west. 

The implementation that is needed is a standard GPOS lookup table.
https://docs.microsoft.com/en-us/typography/opentype/spec/gpos

So the if following sequence [pì cÐ ¡?£ï Qì] works. Meaning when the anchor
characters color is changed, the anchor characters stay attached to the
destination anchors location (west/north west) then the GPOS look up table is
working properly. 

My hunch is... When the color button is clicked the look up table is never
reapplied. Currently when the fonts are set the GPOS table is being applied, as
soon as the color is changed the GPOS table is ignored.

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