Error when exporting screenshotDone

This is now fixed — thank you for the detailed report, it made it easy to track down 🙏 What was happening: the export library (html2canvas) doesn't support the oklch() color function. That color was getting into the page from browser defaults or an extension, and the exporter crashed when it tried to parse it. The fix: right before export, the tool now reads each element's already-resolved color from the browser (which the browser gives back as standard rgb) and applies it, so the exporter never sees oklch at all. Output is pixel-identical — same colors, just a format the exporter can handle. It's live now. Please give it another go, and if you still run into it, let me know your browser and any active extensions and I'll dig further.