Enable animation for Text Run style prop <img width="262" alt="CleanShot 2023-08-01 at 10 17 31@2x" src="https://github.com/rive-app/rive/assets/8057513/ee375ef9-7a23-418b-81a2-6f38bc102200"> Diffs= da909105a Enable animation for Text Run style prop (#5726) Co-authored-by: Alex Gibson <agibson.uk@gmail.com> Co-authored-by: Luigi Rosso <luigi.rosso@gmail.com>

diff --git a/.rive_head b/.rive_head
index 89affb8..b9d3c3b 100644
--- a/.rive_head
+++ b/.rive_head

@@ -1 +1 @@
-b69ae131259dd46e67c0be905b86b89d4f2ad20e
+da909105ad9ad42fc9245fc2ae05ac10f6bca41c

diff --git a/dev/defs/text/text_value_run.json b/dev/defs/text/text_value_run.json
index be4ee8c..0dae240 100644
--- a/dev/defs/text/text_value_run.json
+++ b/dev/defs/text/text_value_run.json

@@ -11,6 +11,7 @@
       "typeRuntime": "uint",
       "initialValue": "Core.missingId",
       "initialValueRuntime": "-1",
+      "animates": true,
       "key": {
         "int": 272,
         "string": "styleid"
@@ -28,4 +29,4 @@
       "description": "The text string value."
     }
   }
-}
\ No newline at end of file
+}

diff --git a/include/rive/text/text_value_run.hpp b/include/rive/text/text_value_run.hpp
index 5583f13..3bdca17 100644
--- a/include/rive/text/text_value_run.hpp
+++ b/include/rive/text/text_value_run.hpp

@@ -15,6 +15,7 @@
 
 protected:
     void textChanged() override;
+    void styleIdChanged() override;
 
 private:
     TextStyle* m_style = nullptr;

diff --git a/src/text/text_value_run.cpp b/src/text/text_value_run.cpp
index 8e2b7fb..f46c83b 100644
--- a/src/text/text_value_run.cpp
+++ b/src/text/text_value_run.cpp

@@ -2,6 +2,7 @@
 #include "rive/text/text.hpp"
 #include "rive/text/text_style.hpp"
 #include "rive/text/text_value_run.hpp"
+#include "rive/artboard.hpp"
 
 using namespace rive;
 
@@ -42,6 +43,16 @@
     return StatusCode::Ok;
 }
 
+void TextValueRun::styleIdChanged()
+{
+    auto coreObject = artboard()->resolve(styleId());
+    if (coreObject != nullptr && coreObject->is<TextStyle>())
+    {
+        m_style = static_cast<TextStyle*>(coreObject);
+        parent()->as<Text>()->markShapeDirty();
+    }
+}
+
 uint32_t TextValueRun::offset() const
 {
 #ifdef WITH_RIVE_TEXT