This is a quick porting of the color gradient tool from this blog post into a standalone program. Also, it was an excuse for me to try out the webview crate for HTML/JS GUIs in desktop Rust applications.
Before building, be sure to install the prerequisites for webview.
The HTML/JavaScript is © 2021 Raph Levien; the Rust is © 2021 Zachary Catlin. Both parts are Apache licensed.