Add PAL palette format import

src/Autoload/Import.gd

@@ -294,3 +294,28 @@ func import_png_palette(path: String, image : Image) -> Palette:
 	result.name = path.get_basename().get_file()
 
 	return result
+
+
+func import_pal_palette(path : String, text : String) -> Palette:
+	var result: Palette = null
+
+	var lines = text.split('\n')
+
+	if lines[0] != 'JASC-PAL' or lines[1] != '0100':
+		return result
+	else:
+		result = Palette.new()
+		result.name = path.get_basename().get_file()
+
+	var num_colors = int(lines[2])
+
+	for i in range(3, num_colors + 3):
+		var color_data = lines[i].split(' ')
+		var red : float = color_data[0].to_float() / 255.0
+		var green : float = color_data[1].to_float() / 255.0
+		var blue : float = color_data[2].to_float() / 255.0
+
+		var color = Color(red, green, blue)
+		result.add_color(color)
+
+	return result

src/Palette/PaletteContainer.gd

@@ -58,6 +58,13 @@ func on_palette_import_file_selected(path : String) -> void:
 			var text = file.get_as_text()
 			file.close()
 			palette = Import.import_gpl(path, text)
+	elif path.to_lower().ends_with("pal"):
+		var file = File.new()
+		if file.file_exists(path):
+			file.open(path, File.READ)
+			var text = file.get_as_text()
+			file.close()
+			palette = Import.import_pal_palette(path, text)
 	elif path.to_lower().ends_with("png") or path.to_lower().ends_with("bmp") or path.to_lower().ends_with("hdr") or path.to_lower().ends_with("jpg") or path.to_lower().ends_with("svg") or path.to_lower().ends_with("tga") or path.to_lower().ends_with("webp"):
 		var image := Image.new()
 		var err := image.load(path)

src/Palette/PalettePanelContainer.tscn

@@ -175,6 +175,7 @@ margin_left = 7.0
 margin_top = 7.0
 margin_right = 507.0
 margin_bottom = 307.0
+filters = PoolStringArray( "*.json ; JavaScript Object Notation", "*.gpl ; Gimp Palette Library", "*.png; Portable Network Graphics", "*.pal; JASC Palette" )
 
 [node name="EditPalettePopup" parent="." instance=ExtResource( 7 )]
 margin_left = 7.0