[Port] [6000.4] [UUM-131603][UUM-131646] Fix some small ShaderGraph UI issues

Author: svc-reach-platform-support

Packages/com.unity.shadergraph/Editor/Drawing/Inspector/PropertyDrawers/ShaderInputPropertyDrawer.cs

@@ -1499,11 +1499,15 @@ void CustomAttributesAddCallbacks()
                 m_CustomAttributesReorderableList.drawElementCallback = (Rect rect, int index, bool isActive, bool isFocused) =>
                 {
                     var entry = (AbstractShaderProperty.PropertyAttribute)m_CustomAttributesReorderableList.list[index];
-                    Rect displayRect = new Rect(rect.x, rect.y, rect.width / 2, EditorGUIUtility.singleLineHeight);
+                    float entryHeight = EditorGUIUtility.singleLineHeight;
+                    float columnWidth = rect.width / 2;
+                    float verticalPadding = (rect.height - entryHeight) / 2;
+                    Rect nameDisplayRect = new Rect(rect.x, rect.y + verticalPadding, columnWidth, entryHeight);
+                    Rect valueDisplayRect = new Rect(rect.x + columnWidth, rect.y + verticalPadding, columnWidth, entryHeight);
 
                     EditorGUI.BeginChangeCheck();
-                    var name = EditorGUI.DelayedTextField(displayRect, entry.name, EditorStyles.label);
-                    var value = EditorGUI.DelayedTextField(new Rect(rect.x + rect.width / 2, rect.y, rect.width / 2, EditorGUIUtility.singleLineHeight), entry.value);
+                    var name = EditorGUI.DelayedTextField(nameDisplayRect, entry.name, EditorStyles.label);
+                    var value = EditorGUI.DelayedTextField(valueDisplayRect, entry.value);
 
                     if (EditorGUI.EndChangeCheck())
                     {

Packages/com.unity.shadergraph/Editor/Drawing/Views/Slots/ColorRGBSlotControlView.cs

@@ -17,7 +17,7 @@ public ColorRGBSlotControlView(ColorRGBMaterialSlot slot)
             m_Slot = slot;
             var colorField = new ColorField
             {
-                value = new Color(slot.value.x, slot.value.y, slot.value.z, 0),
+                value = new Color(slot.value.x, slot.value.y, slot.value.z, 1),
                 showEyeDropper = false,
                 showAlpha = false,
                 hdr = (slot.colorMode == ColorMode.HDR)