From a27aeda57f4f18e7adf28d97535b947140168adf Mon Sep 17 00:00:00 2001
From: vrugtehagel <vrugtehagel@pm.me>
Date: Sat, 25 May 2024 11:09:59 +0200
Subject: [PATCH 1/2] Add transition-behavior property

---
 CSS3.sublime-syntax | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/CSS3.sublime-syntax b/CSS3.sublime-syntax
index 6848ddf..e940f47 100644
--- a/CSS3.sublime-syntax
+++ b/CSS3.sublime-syntax
@@ -10380,6 +10380,20 @@ contexts:
         - include: single-transition
     - include: stray-paren-or-semicolon
 
+  # CSS Transitions
+  property-transition-behavior:
+    - match: \b(transition-behavior)\s*(:)
+      captures:
+        1: support.type.property-name.css
+        2: punctuation.separator.key-value.css
+      push:
+        - meta_content_scope: meta.property-value.transition-behavior.css
+        - include: end-value
+        - include: value-css-wide
+        - match: '\b(?:allow-discrete|normal){{b}}'
+          scope: support.constant.property-value.css
+    - include: stray-paren-or-semicolon
+
   # CSS Transitions
   property-transition-delay:
     - match: \b(transition-delay)\s*(:)

From f77361ed430815defa131dc5ec010d6cd541dd55 Mon Sep 17 00:00:00 2001
From: vrugtehagel <vrugtehagel@pm.me>
Date: Sat, 25 May 2024 11:15:56 +0200
Subject: [PATCH 2/2] Add completions and include it to be highlighted

---
 CSS3.sublime-syntax       | 1 +
 completions/properties.py | 2 ++
 test/property-list.css    | 6 ++++++
 3 files changed, 9 insertions(+)

diff --git a/CSS3.sublime-syntax b/CSS3.sublime-syntax
index e940f47..a9e313b 100644
--- a/CSS3.sublime-syntax
+++ b/CSS3.sublime-syntax
@@ -4037,6 +4037,7 @@ contexts:
     - include: property-transform-box
     - include: property-transform-origin
     - include: property-transform-style
+    - include: property-transition-behavior
     - include: property-transition-delay
     - include: property-transition-duration
     - include: property-transition-property
diff --git a/completions/properties.py b/completions/properties.py
index 8fc8610..1b72a5f 100644
--- a/completions/properties.py
+++ b/completions/properties.py
@@ -511,6 +511,7 @@
     ("transform-origin", "transform-origin: ${1};"),
     ("transform-style", "transform-style: ${1};"),
     ("transition", "transition: ${1};"),
+    ("transition-behavior", "transition-behavior: ${1};"),
     ("transition-delay", "transition-delay: ${1};"),
     ("transition-duration", "transition-duration: ${1};"),
     ("transition-property", "transition-property: ${1};"),
@@ -1667,6 +1668,7 @@
     "transform-origin": t.position,
     "transform-style": [("flat",), ("preserve-3d",)],
     "transition": t.single_transition,
+    "transition-behavior": [("allow-discrete",), ("normal",)],
     "transition-delay": t.time,
     "transition-duration": t.time,
     "transition-property": [("all",), ("none",), t.identifier],
diff --git a/test/property-list.css b/test/property-list.css
index e9b8233..8a6ec06 100644
--- a/test/property-list.css
+++ b/test/property-list.css
@@ -6280,6 +6280,12 @@
     -webkit-transition: background-color linear 1s;
     -webkit-transition: unset;
 
+    transition-behavior: initial;
+    transition-behavior: inherit;
+    transition-behavior: unset;
+    transition-behavior: allow-discrete;
+    transition-behavior: normal;
+
     transition-delay: initial;
     transition-delay: inherit;
     transition-delay: unset;