Handle multiple resolutions in most demos

This makes demos render correctly on hiDPI displays,
while also demonstrating how to handle multiple resolutions.

The 3D in 2D demo now uses "3D No-Effects" for the 3D viewport,
which is faster to render. Thanks to this, 4× MSAA is now enabled
for a better result.

The background loading demo now uses mipmaps for better-looking images.

The material testers demo now samples mouse input in a
resolution-independent manner when panning.

Default clear colors were also changed in some projects for visual
consistency with the project's theme.

gui/rich_text_bbcode/icon.png.import

@@ -3,20 +3,21 @@
 importer="texture"
 type="StreamTexture"
 path="res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex"
+metadata={
+"vram_texture": false
+}
 
 [deps]
 
 source_file="res://icon.png"
-source_md5="7308b25cf412df075856feeee943d2b4"
-
 dest_files=[ "res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex" ]
-dest_md5="02a47787cb375a9393c36defd733eca5"
 
 [params]
 
 compress/mode=0
 compress/lossy_quality=0.7
 compress/hdr_mode=0
+compress/bptc_ldr=0
 compress/normal_map=0
 flags/repeat=0
 flags/filter=true
@@ -26,6 +27,7 @@ flags/srgb=2
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/HDR_as_SRGB=false
+process/invert_color=false
 stream=false
 size_limit=0
 detect_3d=true

gui/rich_text_bbcode/project.godot

@@ -19,6 +19,11 @@ config/name="Rich Text Label (BBCode)"
 run/main_scene="res://rich_text_bbcode.tscn"
 config/icon="res://icon.png"
 
+[display]
+
+window/stretch/mode="2d"
+window/stretch/aspect="expand"
+
 [gdnative]
 
 singletons=[  ]
@@ -26,3 +31,7 @@ singletons=[  ]
 [memory]
 
 multithread/thread_rid_pool_prealloc=60
+
+[rendering]
+
+environment/default_clear_color=Color( 0.145098, 0.145098, 0.164706, 1 )

gui/rich_text_bbcode/rich_text_bbcode.tscn

@@ -23,13 +23,20 @@ size = 20
 font_data = ExtResource( 5 )
 
 [node name="Panel" type="Panel"]
-anchor_right = 1.0
-anchor_bottom = 1.0
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+margin_left = -512.0
+margin_top = -300.0
+margin_right = 512.0
+margin_bottom = 300.0
 size_flags_horizontal = 2
 size_flags_vertical = 2
 script = ExtResource( 1 )
 __meta__ = {
-"__editor_plugin_screen__": "2D"
+"__editor_plugin_screen__": "2D",
+"_edit_use_anchors_": false
 }
 
 [node name="RichTextLabel" type="RichTextLabel" parent="."]
@@ -49,22 +56,24 @@ bbcode_enabled = true
 bbcode_text = "[b][u]Rich Text Test[/u][/b]
 
 RichTextLabel is a flexible way of adding text to your game, with support for [i]italics[/i], [b]bold[/b] and [i][b]both[/b][/i]. [u]Underline[/u] works too.
-It is also possible to include [img]res://unicorn_icon.png[/img] custom images, as well as [color=aqua][url=https://godotengine.org]Custom URLs[/url][/color].
+It is also possible to include [img]res://unicorn_icon.png[/img] custom images, as well as [color=aqua][url=https://godotengine.org]custom URLs[/url][/color].
 
 Left alignment is default,[center]but center alignment is supported,[/center][right]as well as right alignment.[/right]
-[fill]Fill alignment is also supported, and allows writing very long text that will end up fitting the horizontal space entirely with  words of joy.[/fill]
+[fill]Fill alignment is also supported, and allows writing very long text that will end up fitting the horizontal space entirely with words of joy.[/fill]
 
-For full reference [color=aqua][url=https://docs.godotengine.org/en/latest/tutorials/gui/bbcode_in_richtextlabel.html]check the documentation.[/url][/color]
+For full reference, [color=aqua][url=https://docs.godotengine.org/en/latest/tutorials/gui/bbcode_in_richtextlabel.html]check the documentation.[/url][/color]
 "
 text = "Rich Text Test
 
 RichTextLabel is a flexible way of adding text to your game, with support for italics, bold and both. Underline works too.
-It is also possible to include  custom images, as well as Custom URLs.
+It is also possible to include  custom images, as well as custom URLs.
 
 Left alignment is default,but center alignment is supported,as well as right alignment.
-Fill alignment is also supported, and allows writing very long text that will end up fitting the horizontal space entirely with  words of joy.
+Fill alignment is also supported, and allows writing very long text that will end up fitting the horizontal space entirely with words of joy.
 
-For full reference check the documentation.
+For full reference, check the documentation.
 "
-
+__meta__ = {
+"_edit_use_anchors_": false
+}
 [connection signal="meta_clicked" from="RichTextLabel" to="." method="_on_RichTextLabel_meta_clicked"]

gui/rich_text_bbcode/unicorn_icon.png.import

@@ -3,20 +3,21 @@
 importer="texture"
 type="StreamTexture"
 path="res://.import/unicorn_icon.png-7e6ed0493ce9bae1105057e782fcd0de.stex"
+metadata={
+"vram_texture": false
+}
 
 [deps]
 
 source_file="res://unicorn_icon.png"
-source_md5="22f87e5cf3d8de3aae88c5af51032da0"
-
 dest_files=[ "res://.import/unicorn_icon.png-7e6ed0493ce9bae1105057e782fcd0de.stex" ]
-dest_md5="f10e3990ad10694cb7e392dc727a4ea7"
 
 [params]
 
 compress/mode=0
 compress/lossy_quality=0.7
 compress/hdr_mode=0
+compress/bptc_ldr=0
 compress/normal_map=0
 flags/repeat=0
 flags/filter=true
@@ -26,6 +27,7 @@ flags/srgb=2
 process/fix_alpha_border=true
 process/premult_alpha=false
 process/HDR_as_SRGB=false
+process/invert_color=false
 stream=false
 size_limit=0
 detect_3d=true