Custom character sheets are a pro subscription perk and are made using HTML, CSS, and a subset of Javascript colloquially known as sheetworkers. Most of the character sheets available to the community are made by dedicated and amazing community members who devote their free time to providing these sheets. You can drop by the sheet request thread to see if someone would be willing to make a sheet for this system, although you can probably use the Cypher by Roll20 sheet; it isn't styled for the unmasked game but can certainly handle all the cypher system rules just fine.