Update projects to Godot 3.3

plugins/addons/main_screen/main_panel.tscn

@@ -6,6 +6,9 @@
 anchor_right = 1.0
 anchor_bottom = 1.0
 size_flags_vertical = 3
+__meta__ = {
+"_edit_use_anchors_": false
+}
 
 [node name="PrintHello" type="Button" parent="."]
 margin_left = 472.0
@@ -17,4 +20,5 @@ script = ExtResource( 1 )
 __meta__ = {
 "_edit_use_anchors_": false
 }
+
 [connection signal="pressed" from="PrintHello" to="PrintHello" method="_on_PrintHello_pressed"]

plugins/addons/material_creator/material_dock.tscn

@@ -23,7 +23,6 @@ rect_min_size = Vector2( 0, 400 )
 margin_right = 200.0
 margin_bottom = 30.0
 rect_min_size = Vector2( 200, 30 )
-custom_colors/font_color_shadow = Color( 0, 0, 0, 1 )
 custom_constants/shadow_as_outline = 1
 text = "Material creator"
 align = 1

plugins/project.godot

@@ -8,11 +8,6 @@
 
 config_version=4
 
-_global_script_classes=[  ]
-_global_script_class_icons={
-
-}
-
 [application]
 
 config/name="Plugin Demos"