| # XTRA based on https://variationsguide.typenetwork.com/#xtra | |
| tag: "XTRA" | |
| display_name: "X transparent" | |
| min_value: -1000 | |
| max_value: 2000 | |
| default_value: 400 | |
| precision: 0 | |
| fallback { | |
| name: "Normal" | |
| value: 400 | |
| } | |
| description: | |
| "Assigns a 'white'”' per mille value to each instance of the design space." |