This video explains why off-curve extremes may affect the your font.
1. Find the Highest Glpyh in the font from the Font Properties dialogue by double-clicking on Y-Maximum
2. Show the Validation Toolbar to highlight any errors
3. Use the Validation Toolbar to add on-curve extremes
4. Recalculate the Font Metrics to use the new Y-Maximum value for WinAscent.
5. Locate other errors in the glyph such as intersecting co-ordinates to correct them.
6. Note that one error can stop the validator checking for other errors
Too blurry, can't read it :(
Glic2000 1 month ago