> There's also the question of whether MVAR tags should apply to
> whatever was used for ascent/descent. I think yes. And I'll
> implement that in HB.
What would you do when
1. the typo metrics are modified by the MVAR table
If Typo exists, that's what MVAR tags are applied to.
2. win metrics are modified
3. both are modified
The thinking within the working group was that no one uses win metrics, so we didn't encode their variations. Indeed, the only time one uses them these days is if typo and hhea metrics are not set...