diff --git a/src/tool-options.js b/src/tool-options.js
index fd8bde8..988630e 100644
--- a/src/tool-options.js
+++ b/src/tool-options.js
@@ -288,3 +288,39 @@ var $choose_transparency = $Choose(
 		return t_o === transparent_opaque;
 	}
 ).addClass("choose-transparency");
+
+// var $choose_transparency_unsupported =
+// 	$choose_transparency
+// 	.trigger("update")
+// 	.clone()
+// 	.attr("title", "This transparency option is not supported yet for selections.")
+// 	.css({filter: "saturation(0)"});
+// $choose_transparency_unsupported.find("canvas").each(function(index, canvas){
+// 	var image = $choose_transparency.find("canvas")[index];
+// 	canvas.getContext("2d").drawImage(image, 0, 0);
+// });
+// ^ doesn't work because ChooserCanvas has to load an image asynchronously
+
+var $choose_transparency_unsupported = $Choose(
+	["opaque", "transparent"],
+	function(t_o, is_chosen){
+		var sw = 35, sh = 23; // width, height from source image
+		var b = 2; // margin by which the source image is inset on the destination
+		return ChooserCanvas(
+			"images/options-transparency.png",
+			false, // never invert it
+			b+sw+b, b+sh+b, // width, height of created destination canvas
+			0, (t_o === "opaque" ? 0 : 22), sw, sh, // x, y, width, height from source image
+			b, b, sw, sh // x, y, width, height on created destination canvas
+		);
+	},
+	function(t_o){
+		// transparent_opaque = t_o;
+	},
+	function(t_o){
+		return t_o === "opaque";//transparent_opaque;
+	}
+).addClass("choose-transparency")
+.attr("title", "This option for transparency is not supported yet.")
+.css({filter: "grayscale() opacity(0.5)"});
+
diff --git a/src/tools.js b/src/tools.js
index 892e4ee..36acf32 100644
--- a/src/tools.js
+++ b/src/tools.js
@@ -107,7 +107,7 @@ tools = [{
 		selection.instantiate(cutout);
 		selection.cut_out_background();
 	},
-	$options: $choose_transparency
+	$options: $choose_transparency_unsupported
 }, {
 	name: "Select",
 	description: "Selects a rectangular part of the picture to move, copy, or edit.",
@@ -164,7 +164,7 @@ tools = [{
 		selection.destroy();
 		selection = null;
 	},
-	$options: $choose_transparency
+	$options: $choose_transparency_unsupported
 }, {
 	name: "Eraser/Color Eraser",
 	description: "Erases a portion of the picture, using the selected eraser shape.",