Re: [csswg-drafts] [css-color] Why not just alias deprecated system colors at parse time? (#13459)

It's observable, e.g. Firefox is already using parse aliases for prefixed system colors:

```html
<!DOCTYPE html>
<script>
var { style } = document.documentElement;
style.color = "-moz-field";
document.write(style.color + "<br>"); // "field" (parse alias)
style.color = "ActiveBorder";
document.write(style.color + "<br>"); // Currently: "activeborder" (not an alias)
                                      // Proposed:  "buttonborder" (parse alias)
style.color = "";
</script>
```

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Received on Wednesday, 25 February 2026 14:09:06 UTC