Automatic Fixes

Some fixes are applied automatically based on the specific Glyphs build you use.

These are so basic that there is not even a Custom Parameter to configure them. They are applied automatically whenever Corretto is active.

Delta Instructions

In TrueType fonts exported with Glyphs build 3151, the delta base value is not set correctly in the prep table, to the effect that any delta instructions that occur in glyph programs are applied at the wrong ppem size.

Corretto adds the missing instruction to set the delta base value, so that delta instructions are applied at the intended font size, and as they are previewed in Glyphs’ TrueType Instructor tool.

Multiple Variable Font Settings

When you have multiple Variable Font Settings in your exports, and they use different vertical metrics, Glyphs gets confused and uses the same set of vertical metrics for all variable exports.

Corretto makes sure the correct vertical metrics are applied to each variable font.