Fetches optical-size feature data (i.
e., the `size` feature from GPOS). Note that the subfamily_id and the subfamily name string (accessible via the subfamily_name_id) as used here are defined as pertaining only to fonts within a font family that differ specifically in their respective size ranges; other ways to differentiate fonts within a subfamily are not covered by the `size` feature.
For more information on this distinction, see the [`size` feature documentation]( https://docs.microsoft.com/en-us/typography/opentype/spec/features_pt#tag-size).
| face |
Face to work upon |
| design_size |
The design size of the face |
| subfamily_id |
The identifier of the face within the font subfamily |
| subfamily_name_id |
The ‘name’ table name ID of the face within the font subfamily |
| range_start |
The minimum size of the recommended size range for the face |
| range_end |
The maximum size of the recommended size range for the face |
|
`true` if data found, `false` otherwise |