New sheets will need to meet the minimum required standards located in the Roll20 Wiki. Creating a sheet.json File. When you are ready to submit your template for public use, create a sheet.json file in your sheet's folder (see the kitchensink folder for an example
Oct 17, 2017 · Your files in your character sheet folder (your html, css, json and the logo) all seem fine and to go. The only thing you're missing in that folder is the image for the preview (you have it listed correctly in your sheet.json, however it doesn't look like you've actually added it).