If you'd like to contribute to this extension, please take a look at the issues or create a new one. If you'd like to create the new icon, please reference the Symbols - File Icon Figma file, you can make a copy or reference the styles used (tailwind). Please try to limit your colors to the ones used in existing icons before choosing a different color style.
When submitting a PR, please ensure you've tested the extension locally and ensure that your new icons appears correctly in the file tree view with your new file extension. Include a screenshot of your proposed icon in your PR.