add more menu backgrounds and change how they work

UI/MenuBG/12StageBG.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://bbh6ix3868a7v"
+path="res://.godot/imported/12StageBG.png-b51ee8e37fe54bba68347f9fa2fa6ca5.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://UI/MenuBG/12StageBG.png"
+dest_files=["res://.godot/imported/12StageBG.png-b51ee8e37fe54bba68347f9fa2fa6ca5.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

UI/MenuBG/2StageBG.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://cnm6hpjv0bd3d"
+path="res://.godot/imported/2StageBG.png-a495b53b2f4b7368ffa6c2155e150dbe.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://UI/MenuBG/2StageBG.png"
+dest_files=["res://.godot/imported/2StageBG.png-a495b53b2f4b7368ffa6c2155e150dbe.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

UI/MenuBG/Cyber3StageBG.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://n1ypuxihcier"
+path="res://.godot/imported/Cyber3StageBG.png-5bd6026592f95e9141a02c5f74de1240.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://UI/MenuBG/Cyber3StageBG.png"
+dest_files=["res://.godot/imported/Cyber3StageBG.png-5bd6026592f95e9141a02c5f74de1240.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

UI/MenuBG/Mini1StageBG.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://c25ayrt5kd6gb"
+path="res://.godot/imported/Mini1StageBG.png-c9d1463641b68657cfed808e21dbf2db.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://UI/MenuBG/Mini1StageBG.png"
+dest_files=["res://.godot/imported/Mini1StageBG.png-c9d1463641b68657cfed808e21dbf2db.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1