Uploading an image shouldn't mean leaving the field you're editing. The markdown editor's toolbar has an "insert image" button that opens a small popup with two options: paste a URL, or upload a file from your computer. …

Every field in <TextField> declares a type. The type decides which editing widget the panel shows you, and, on the front end, which extra variables come along with it. Text is the simplest: a single-line input, printed a…