More UI changes

- Left tool options is now on top of the right tool options.
- Brushes have been removed from the right panel, and have instead become a popup that appears when you press one of the brush type buttons, to choose a brush. The indicators will be removed.

Assets/Graphics/Brush_button.png.import

@@ -2,15 +2,15 @@
 
 importer="texture"
 type="StreamTexture"
-path="res://.import/pixel.png-02d24c392cbedb7afeccdbe493729855.stex"
+path="res://.import/Brush_button.png-4783b6e96c01a99d0b15c8e80d794dbf.stex"
 metadata={
 "vram_texture": false
 }
 
 [deps]
 
-source_file="res://Assets/Graphics/pixel.png"
-dest_files=[ "res://.import/pixel.png-02d24c392cbedb7afeccdbe493729855.stex" ]
+source_file="res://Assets/Graphics/Brush_button.png"
+dest_files=[ "res://.import/Brush_button.png-4783b6e96c01a99d0b15c8e80d794dbf.stex" ]
 
 [params]
 
@@ -20,7 +20,7 @@ compress/hdr_mode=0
 compress/bptc_ldr=0
 compress/normal_map=0
 flags/repeat=0
-flags/filter=false
+flags/filter=true
 flags/mipmaps=false
 flags/anisotropic=false
 flags/srgb=2

Assets/Graphics/pixel_image.png.import

@@ -0,0 +1,13 @@
+[remap]
+
+importer="image"
+type="Image"
+path="res://.import/pixel_image.png-44462e1df93ae83fafb33e7d5d2c9060.image"
+
+[deps]
+
+source_file="res://Assets/Graphics/pixel_image.png"
+dest_files=[ "res://.import/pixel_image.png-44462e1df93ae83fafb33e7d5d2c9060.image" ]
+
+[params]
+