Patch background-clip definition (fixes #190)

CHANGELOG.md

@@ -3,6 +3,7 @@
 - Bumped `mdn-data` to `2.0.28`
 - Added support for CSS wide keywords `revert` and `revert-layer`
 - Dropped support for `expression()` the same way as CSS wide keywords
+- Patched `background-clip` definition to match [Backgrounds and Borders 4](https://drafts.csswg.org/css-backgrounds-4/#background-clip) (#190)
 - Value definition syntax:
     - Added support for stacked multipliers `+#` and `#?` according to spec (#199)
     - Added parsing of a dimension in range definition notations, however, a validation for such ranges is not supported yet (#192)

data/patch.json

@@ -150,6 +150,13 @@
             ],
             "syntax": "auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical"
         },
+        "background-clip": {
+            "comment": "used <bg-clip> from CSS Backgrounds and Borders 4 since it adds new values",
+            "references": [
+                "https://github.com/csstree/csstree/issues/190"
+            ],
+            "syntax": "<bg-clip>#"
+        },
         "baseline-shift": {
             "comment": "added SVG property",
             "references": [
@@ -582,6 +589,10 @@
         "attr-fallback": {
             "syntax": "<any-value>"
         },
+        "bg-clip": {
+            "comment": "missed, https://drafts.csswg.org/css-backgrounds-4/#typedef-bg-clip",
+            "syntax": "<box> | border | text"
+        },
         "border-radius": {
             "comment": "missed, https://drafts.csswg.org/css-backgrounds-3/#the-border-radius",
             "syntax": "<length-percentage>{1,2}"