diff --git a/plugins/CuraEngineBackend/StartSliceJob.py b/plugins/CuraEngineBackend/StartSliceJob.py
index 13aee06289..5a76923f7f 100644
--- a/plugins/CuraEngineBackend/StartSliceJob.py
+++ b/plugins/CuraEngineBackend/StartSliceJob.py
@@ -319,18 +319,24 @@ class StartSliceJob(Job):
     #   \param message object_lists message to put the per object settings in
     def _handlePerObjectSettings(self, node, message):
         stack = node.callDecoration("getStack")
-        if not stack: # Check if the node has a stack attached to it and the stack has any settings in the top container.
+
+        # Check if the node has a stack attached to it and the stack has any settings in the top container.
+        if not stack:
             return
 
         # Check all settings for relations, so we can also calculate the correct values for dependent settings.
-        top_of_stack = stack.getTop() #Cache for efficiency.
+        top_of_stack = stack.getTop()  # Cache for efficiency.
         changed_setting_keys = set(top_of_stack.getAllKeys())
+
+        # Add all relations to changed settings as well.
         for key in top_of_stack.getAllKeys():
             instance = top_of_stack.getInstance(key)
             self._addRelations(changed_setting_keys, instance.definition.relations)
             Job.yieldThread()
 
-        # Ensure that the engine is aware what the build extruder is
+        Logger.log("d", "changed_setting_keys=%s", changed_setting_keys)
+
+        # Ensure that the engine is aware what the build extruder is.
         if stack.getProperty("machine_extruder_count", "value") > 1:
             changed_setting_keys.add("extruder_nr")
 
@@ -339,14 +345,18 @@ class StartSliceJob(Job):
             setting = message.addRepeatedMessage("settings")
             setting.name = key
             extruder = int(round(float(stack.getProperty(key, "limit_to_extruder"))))
-            if extruder >= 0 and key not in top_of_stack.getAllKeys(): #Limited to a specific extruder, but not overridden by per-object settings.
+
+            # Check if limited to a specific extruder, but not overridden by per-object settings.
+            if extruder >= 0 and key not in changed_setting_keys:
                 limited_stack = ExtruderManager.getInstance().getActiveExtruderStacks()[extruder]
             else:
-                limited_stack = stack #Just take from the per-object settings itself.
+                limited_stack = stack
+
             setting.value = str(limited_stack.getProperty(key, "value")).encode("utf-8")
+
             Job.yieldThread()
 
-    ##  Recursive function to put all settings that require eachother for value changes in a list
+    ##  Recursive function to put all settings that require each other for value changes in a list
     #   \param relations_set \type{set} Set of keys (strings) of settings that are influenced
     #   \param relations list of relation objects that need to be checked.
     def _addRelations(self, relations_set, relations):
diff --git a/resources/definitions/ultimaker.def.json b/resources/definitions/ultimaker.def.json
index b11a84164a..797a05e324 100644
--- a/resources/definitions/ultimaker.def.json
+++ b/resources/definitions/ultimaker.def.json
@@ -31,6 +31,11 @@
         {
             "minimum_value": "0",
             "maximum_value": "machine_width"
+        },
+        "relative_extrusion":
+        {
+            "value": false,
+            "enabled": false
         }
     }
 }
diff --git a/resources/themes/cura-light/theme.json b/resources/themes/cura-light/theme.json
index 9cf736aa34..46bf343bed 100644
--- a/resources/themes/cura-light/theme.json
+++ b/resources/themes/cura-light/theme.json
@@ -166,7 +166,7 @@
         "setting_control_highlight": [255, 255, 255, 0],
         "setting_control_border": [127, 127, 127, 255],
         "setting_control_border_highlight": [12, 169, 227, 255],
-        "setting_control_text": [127, 127, 127, 255],
+        "setting_control_text": [27, 27, 27, 255],
         "setting_control_depth_line": [127, 127, 127, 255],
         "setting_control_button": [127, 127, 127, 255],
         "setting_control_button_hover": [70, 84, 113, 255],
@@ -197,7 +197,7 @@
         "checkbox_border": [64, 69, 72, 255],
         "checkbox_border_hover": [12, 169, 227, 255],
         "checkbox_mark": [119, 122, 124, 255],
-        "checkbox_text": [166, 168, 169, 255],
+        "checkbox_text": [27, 27, 27, 255],
 
         "mode_switch": [255, 255, 255, 255],
         "mode_switch_hover": [255, 255, 255, 255],
@@ -225,7 +225,7 @@
         "message_progressbar_background": [255, 255, 255, 255],
         "message_progressbar_control": [12, 169, 227, 255],
 
-        "tool_panel_background": [31, 36, 39, 255],
+        "tool_panel_background": [255, 255, 255, 255],
 
         "status_offline": [0, 0, 0, 255],
         "status_ready": [0, 205, 0, 255],