From c6ede0c5cafcf8b39a29933909405b47e7b32b5d Mon Sep 17 00:00:00 2001
From: Chris Mills <chrisdavidmills@gmail.com>
Date: Tue, 3 Mar 2026 13:40:11 +0000
Subject: [PATCH] Update scroll-triggered animation property names

---
 css/properties.json | 114 ++++++++++++++++++++++----------------------
 1 file changed, 57 insertions(+), 57 deletions(-)

diff --git a/css/properties.json b/css/properties.json
index 8c4f7ae9..ae6093b1 100644
--- a/css/properties.json
+++ b/css/properties.json
@@ -11058,14 +11058,14 @@
     "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/timeline-scope"
   },
   "timeline-trigger": {
-    "syntax": "none | [ <'timeline-trigger-name'> <'timeline-trigger-source'> <'timeline-trigger-range'> [ '/' <'timeline-trigger-exit-range'> ]? ]#",
+    "syntax": "none | [ <'timeline-trigger-name'> <'timeline-trigger-source'> <'timeline-trigger-activation-range'> [ '/' <'timeline-trigger-active-range'> ]? ]#",
     "media": "visual",
     "inherited": false,
     "animationType": [
       "timeline-trigger-name",
       "timeline-trigger-source",
-      "timeline-trigger-range",
-      "timeline-trigger-exit-range"
+      "timeline-trigger-activation-range",
+      "timeline-trigger-active-range"
     ],
     "percentages": "no",
     "groups": [
@@ -11074,63 +11074,47 @@
     "initial": [
       "timeline-trigger-name",
       "timeline-trigger-source",
-      "timeline-trigger-range",
-      "timeline-trigger-exit-range"
+      "timeline-trigger-activation-range",
+      "timeline-trigger-active-range"
     ],
     "appliesto": "allElements",
     "computed": [
       "timeline-trigger-name",
       "timeline-trigger-source",
-      "timeline-trigger-range",
-      "timeline-trigger-exit-range"
+      "timeline-trigger-activation-range",
+      "timeline-trigger-active-range"
     ],
     "order": "perGrammar",
     "status": "standard",
     "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger"
   },
-  "timeline-trigger-name": {
-    "syntax": "none | <dashed-ident>#",
-    "media": "visual",
-    "inherited": false,
-    "animationType": "notAnimatable",
-    "percentages": "no",
-    "groups": [
-      "CSS Animations"
-    ],
-    "initial": "none",
-    "appliesto": "allElements",
-    "computed": "asSpecified",
-    "order": "perGrammar",
-    "status": "standard",
-    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-name"
-  },
-  "timeline-trigger-exit-range": {
-    "syntax": "[ <'timeline-trigger-exit-range-start'> <'timeline-trigger-exit-range-end'>? ]#",
+  "timeline-trigger-activation-range": {
+    "syntax": "[ <'timeline-trigger-activation-range-start'> <'timeline-trigger-activation-range-end'>? ]#",
     "media": "visual",
     "inherited": false,
     "animationType": "notAnimatable",
     "percentages": [
-      "timeline-trigger-exit-range-start",
-      "timeline-trigger-exit-range-end"
+      "timeline-trigger-activation-range-start",
+      "timeline-trigger-activation-range-end"
     ],
     "groups": [
       "CSS Animations"
     ],
     "initial": [
-      "timeline-trigger-exit-range-start",
-      "timeline-trigger-exit-range-end"
+      "timeline-trigger-activation-range-start",
+      "timeline-trigger-activation-range-end"
     ],
     "appliesto": "allElements",
     "computed": [
-      "timeline-trigger-exit-range-start",
-      "timeline-trigger-exit-range-end"
+      "timeline-trigger-activation-range-start",
+      "timeline-trigger-activation-range-end"
     ],
     "order": "perGrammar",
     "status": "standard",
-    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-exit-range"
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-activation-range"
   },
-  "timeline-trigger-exit-range-end": {
-    "syntax": "[ auto | normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#",
+  "timeline-trigger-activation-range-end": {
+    "syntax": "[ normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#",
     "media": "visual",
     "inherited": false,
     "animationType": "notAnimatable",
@@ -11138,15 +11122,15 @@
     "groups": [
       "CSS Animations"
     ],
-    "initial": "auto",
+    "initial": "normal",
     "appliesto": "allElements",
     "computed": "listEachItemConsistingOfNormalLengthPercentageOrNameLengthPercentage",
     "order": "perGrammar",
     "status": "standard",
-    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-exit-range-end"
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-activation-range-end"
   },
-  "timeline-trigger-exit-range-start": {
-    "syntax": "[ auto | normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#",
+  "timeline-trigger-activation-range-start": {
+    "syntax": "[ normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#",
     "media": "visual",
     "inherited": false,
     "animationType": "notAnimatable",
@@ -11154,40 +11138,40 @@
     "groups": [
       "CSS Animations"
     ],
-    "initial": "auto",
+    "initial": "normal",
     "appliesto": "allElements",
     "computed": "listEachItemConsistingOfNormalLengthPercentageOrNameLengthPercentage",
     "order": "perGrammar",
     "status": "standard",
-    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-exit-range-start"
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-activation-range-start"
   },
-  "timeline-trigger-range": {
-    "syntax": "[ <'timeline-trigger-range-start'> <'timeline-trigger-range-end'>? ]#",
+  "timeline-trigger-active-range": {
+    "syntax": "[ <'timeline-trigger-active-range-start'> <'timeline-trigger-active-range-end'>? ]#",
     "media": "visual",
     "inherited": false,
     "animationType": "notAnimatable",
     "percentages": [
-      "timeline-trigger-range-start",
-      "timeline-trigger-range-end"
+      "timeline-trigger-active-range-start",
+      "timeline-trigger-active-range-end"
     ],
     "groups": [
       "CSS Animations"
     ],
     "initial": [
-      "timeline-trigger-range-start",
-      "timeline-trigger-range-end"
+      "timeline-trigger-active-range-start",
+      "timeline-trigger-active-range-end"
     ],
     "appliesto": "allElements",
     "computed": [
-      "timeline-trigger-range-start",
-      "timeline-trigger-range-end"
+      "timeline-trigger-active-range-start",
+      "timeline-trigger-active-range-end"
     ],
     "order": "perGrammar",
     "status": "standard",
-    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-range"
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-active-range"
   },
-  "timeline-trigger-range-end": {
-    "syntax": "[ normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#",
+  "timeline-trigger-active-range-end": {
+    "syntax": "[ auto | normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#",
     "media": "visual",
     "inherited": false,
     "animationType": "notAnimatable",
@@ -11195,15 +11179,15 @@
     "groups": [
       "CSS Animations"
     ],
-    "initial": "normal",
+    "initial": "auto",
     "appliesto": "allElements",
     "computed": "listEachItemConsistingOfNormalLengthPercentageOrNameLengthPercentage",
     "order": "perGrammar",
     "status": "standard",
-    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-range-end"
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-active-range-end"
   },
-  "timeline-trigger-range-start": {
-    "syntax": "[ normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#",
+  "timeline-trigger-active-range-start": {
+    "syntax": "[ auto | normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#",
     "media": "visual",
     "inherited": false,
     "animationType": "notAnimatable",
@@ -11211,12 +11195,28 @@
     "groups": [
       "CSS Animations"
     ],
-    "initial": "normal",
+    "initial": "auto",
     "appliesto": "allElements",
     "computed": "listEachItemConsistingOfNormalLengthPercentageOrNameLengthPercentage",
     "order": "perGrammar",
     "status": "standard",
-    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-range-start"
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-active-range-start"
+  },
+  "timeline-trigger-name": {
+    "syntax": "none | <dashed-ident>#",
+    "media": "visual",
+    "inherited": false,
+    "animationType": "notAnimatable",
+    "percentages": "no",
+    "groups": [
+      "CSS Animations"
+    ],
+    "initial": "none",
+    "appliesto": "allElements",
+    "computed": "asSpecified",
+    "order": "perGrammar",
+    "status": "standard",
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/Reference/Properties/timeline-trigger-name"
   },
   "timeline-trigger-source": {
     "syntax": "<single-animation-timeline>#",