Add support for OpenType font variation
Operating System: -
Description of the feature
OpenType 1.8 introduced font variation, this technology making font weight, width and other styles variable via any parameters, and making multiple font weights and styles integrated into single font file. Pango got this support in version 1.41.0, thus it is possible to make it works.
Adobe Photoshop CC 2018 implement this support, and providing interfaces to adjust any axis for variable fonts. They also showing examples on their support page.