diff --git a/Makefile b/Makefile
index a17a6ae..c709898 100644
--- a/Makefile
+++ b/Makefile
@@ -42,6 +42,18 @@ preview:
 	$(XCODEBUILD) -scheme $(PREVIEW_SCHEME) build
 	$(PREVIEW)
 
+# The picture the screen saver list shows before it starts a live preview.
+# Rendered at 2x and downsampled, so both sizes come from one run. Where the cat
+# ends up is down to where it happened to wander, so run this until you get one
+# you like.
+.PHONY: thumbnail
+thumbnail:
+	$(XCODEBUILD) -scheme $(PREVIEW_SCHEME) build
+	$(PREVIEW) --snapshot Resources/thumbnail@2x.png \
+		--preview --size 90x58 --frames 2400 --grey --cats 1 --speed 5
+	cp Resources/thumbnail@2x.png Resources/thumbnail.png
+	sips -z 58 90 Resources/thumbnail.png >/dev/null
+
 .PHONY: lint
 lint:
 	swiftlint --strict
diff --git a/NecoSaver.xcodeproj/project.pbxproj b/NecoSaver.xcodeproj/project.pbxproj
index 8653309..7b13293 100644
--- a/NecoSaver.xcodeproj/project.pbxproj
+++ b/NecoSaver.xcodeproj/project.pbxproj
@@ -15,6 +15,8 @@
 		CE0000000000000000000106 /* NecoSaverEngine.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE0000000000000000000006 /* NecoSaverEngine.swift */; };
 		CE0000000000000000000107 /* ConfigureSheetController.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE0000000000000000000007 /* ConfigureSheetController.swift */; };
 		CE0000000000000000000108 /* NecoSaverView.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE0000000000000000000008 /* NecoSaverView.swift */; };
+		CE0000000000000000000121 /* thumbnail.png in Resources */ = {isa = PBXBuildFile; fileRef = CE0000000000000000000021 /* thumbnail.png */; };
+		CE0000000000000000000122 /* thumbnail@2x.png in Resources */ = {isa = PBXBuildFile; fileRef = CE0000000000000000000022 /* thumbnail@2x.png */; };
 		CE0000000000000000000109 /* Wallpaper.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE0000000000000000000010 /* Wallpaper.swift */; };
 		CE0000000000000000000111 /* Sprites.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE0000000000000000000001 /* Sprites.swift */; };
 		CE0000000000000000000112 /* SpriteCache.swift in Sources */ = {isa = PBXBuildFile; fileRef = CE0000000000000000000002 /* SpriteCache.swift */; };
@@ -43,6 +45,8 @@
 		CE0000000000000000000008 /* NecoSaverView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NecoSaverView.swift; sourceTree = "<group>"; };
 		CE0000000000000000000010 /* Wallpaper.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Wallpaper.swift; sourceTree = "<group>"; };
 		CE0000000000000000000009 /* PreviewApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PreviewApp.swift; sourceTree = "<group>"; };
+		CE0000000000000000000021 /* thumbnail.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = thumbnail.png; sourceTree = "<group>"; };
+		CE0000000000000000000022 /* thumbnail@2x.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = "thumbnail@2x.png"; sourceTree = "<group>"; };
 		CE0000000000000000000011 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		CE0000000000000000000012 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		CE0000000000000000000013 /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
@@ -91,6 +95,15 @@
 			path = Sources;
 			sourceTree = "<group>";
 		};
+		CE0000000000000000000302 /* Resources */ = {
+			isa = PBXGroup;
+			children = (
+				CE0000000000000000000021 /* thumbnail.png */,
+				CE0000000000000000000022 /* thumbnail@2x.png */,
+			);
+			path = Resources;
+			sourceTree = "<group>";
+		};
 		CE0000000000000000000303 /* Preview */ = {
 			isa = PBXGroup;
 			children = (
@@ -122,6 +135,7 @@
 			isa = PBXGroup;
 			children = (
 				CE0000000000000000000301 /* Sources */,
+				CE0000000000000000000302 /* Resources */,
 				CE0000000000000000000303 /* Preview */,
 				CE0000000000000000000013 /* README.md */,
 				CE0000000000000000000304 /* Frameworks */,
@@ -207,6 +221,8 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				CE0000000000000000000121 /* thumbnail.png in Resources */,
+				CE0000000000000000000122 /* thumbnail@2x.png in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/Resources/thumbnail.png b/Resources/thumbnail.png
new file mode 100644
index 0000000..5de43c8
Binary files /dev/null and b/Resources/thumbnail.png differ
diff --git a/Resources/thumbnail@2x.png b/Resources/thumbnail@2x.png
new file mode 100644
index 0000000..bcc606e
Binary files /dev/null and b/Resources/thumbnail@2x.png differ