Type Tester OpenType Features Config

'panel' | 'select'
Adjusts the user experience for selecting OT features. In the default panel experience, a button reveals a panel with 4 columns of features (can be customized with the columns config). The select experience is a select box which allows the user to select only one OT feature at a time.
Control how the list of OpenType features appear in columns. See OpenType features column config below. If left empty, features will appear in the order set in the Type Testers section of the CMS, automatically organized into 4 columns
'bullet' | 'checkbox'
Selection style for features in the panel experience. Defaults to bullet