diff --git a/src/Main.tscn b/src/Main.tscn
index bc04a258b..170d2ee2b 100644
--- a/src/Main.tscn
+++ b/src/Main.tscn
@@ -70,7 +70,6 @@ margin_bottom = 388.0
 [node name="ExportDialog" parent="Dialogs" instance=ExtResource( 39 )]
 
 [node name="PreferencesDialog" parent="Dialogs" instance=ExtResource( 32 )]
-margin_right = 617.0
 
 [node name="AboutDialog" parent="Dialogs" instance=ExtResource( 34 )]
 
diff --git a/src/Palette/PalettePanel.tscn b/src/Palette/PalettePanel.tscn
index 5a500cca9..16adc90f9 100644
--- a/src/Palette/PalettePanel.tscn
+++ b/src/Palette/PalettePanel.tscn
@@ -49,9 +49,7 @@ mouse_default_cursor_shape = 2
 size_flags_horizontal = 3
 clip_text = true
 
-[node name="EditPalette" type="Button" parent="PaletteVBoxContainer/PaletteButtons" groups=[
-"UIButtons",
-]]
+[node name="EditPalette" type="Button" parent="PaletteVBoxContainer/PaletteButtons" groups=["UIButtons"]]
 margin_left = 256.0
 margin_right = 278.0
 margin_bottom = 22.0
@@ -78,9 +76,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="AddPalette" type="Button" parent="PaletteVBoxContainer/PaletteButtons" groups=[
-"UIButtons",
-]]
+[node name="AddPalette" type="Button" parent="PaletteVBoxContainer/PaletteButtons" groups=["UIButtons"]]
 margin_left = 282.0
 margin_right = 304.0
 margin_bottom = 22.0
diff --git a/src/UI/CanvasPreviewContainer.tscn b/src/UI/CanvasPreviewContainer.tscn
index ded53d04e..1edd2f728 100644
--- a/src/UI/CanvasPreviewContainer.tscn
+++ b/src/UI/CanvasPreviewContainer.tscn
@@ -66,9 +66,7 @@ size_flags_horizontal = 4
 text = "-"
 align = 1
 
-[node name="PlayButton" type="Button" parent="HBoxContainer/VBoxContainer" groups=[
-"UIButtons",
-]]
+[node name="PlayButton" type="Button" parent="HBoxContainer/VBoxContainer" groups=["UIButtons"]]
 margin_top = 140.0
 margin_right = 20.0
 margin_bottom = 160.0
@@ -96,6 +94,9 @@ margin_left = 24.0
 margin_right = 314.0
 margin_bottom = 160.0
 rect_min_size = Vector2( 290, 160 )
+size_flags_horizontal = 3
+size_flags_vertical = 3
+stretch = true
 
 [node name="Viewport" type="Viewport" parent="HBoxContainer/PreviewViewportContainer"]
 size = Vector2( 290, 160 )
diff --git a/src/UI/Timeline/FrameTagDialog.tscn b/src/UI/Timeline/FrameTagDialog.tscn
index 1ad8436b6..9a9221278 100644
--- a/src/UI/Timeline/FrameTagDialog.tscn
+++ b/src/UI/Timeline/FrameTagDialog.tscn
@@ -3,7 +3,6 @@
 [ext_resource path="res://src/UI/Timeline/FrameTagDialog.gd" type="Script" id=1]
 [ext_resource path="res://assets/graphics/timeline/new_frame.png" type="Texture" id=2]
 
-
 [node name="FrameTagDialog" type="AcceptDialog"]
 margin_right = 83.0
 margin_bottom = 58.0
@@ -48,9 +47,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="AddTag" type="Button" parent="VBoxContainer/ScrollContainer/VBoxTagContainer" groups=[
-"UIButtons",
-]]
+[node name="AddTag" type="Button" parent="VBoxContainer/ScrollContainer/VBoxTagContainer" groups=["UIButtons"]]
 margin_top = 8.0
 margin_right = 20.0
 margin_bottom = 28.0
@@ -161,7 +158,8 @@ margin_bottom = 56.0
 mouse_default_cursor_shape = 2
 min_value = 1.0
 value = 1.0
-allow_greater = true 
+allow_greater = true
+
 [connection signal="about_to_show" from="." to="." method="_on_FrameTagDialog_about_to_show"]
 [connection signal="popup_hide" from="." to="." method="_on_FrameTagDialog_popup_hide"]
 [connection signal="pressed" from="VBoxContainer/ScrollContainer/VBoxTagContainer/AddTag" to="." method="_on_AddTag_pressed"]