Add LSApplicationCategoryType to the template and export dialog.

misc/dist/osx_template.app/Contents/Info.plist

@@ -36,6 +36,8 @@
 	</array>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
+	<key>LSApplicationCategoryType</key>
+	<string>public.app-category.$app_category</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>10.12</string>
 	<key>LSMinimumSystemVersionByArchitecture</key>

misc/dist/osx_tools.app/Contents/Info.plist

@@ -38,6 +38,8 @@
 	</array>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
+	<key>LSApplicationCategoryType</key>
+	<string>public.app-category.developer-tools</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>10.12</string>
 	<key>LSMinimumSystemVersionByArchitecture</key>

platform/osx/export/export.cpp

@@ -147,6 +147,7 @@ void EditorExportPlatformOSX::get_export_options(List<ExportOption> *r_options)
 	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "application/icon", PROPERTY_HINT_FILE, "*.png,*.icns"), ""));
 	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "application/bundle_identifier", PROPERTY_HINT_PLACEHOLDER_TEXT, "com.example.game"), ""));
 	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "application/signature"), ""));
+	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "application/app_category", PROPERTY_HINT_ENUM, "Business,Developer-tools,Education,Entertainment,Finance,Games,Action-games,Adventure-games,Arcade-games,Board-games,Card-games,Casino-games,Dice-games,Educational-games,Family-games,Kids-games,Music-games,Puzzle-games,Racing-games,Role-playing-games,Simulation-games,Sports-games,Strategy-games,Trivia-games,Word-games,Graphics-design,Healthcare-fitness,Lifestyle,Medical,Music,News,Photography,Productivity,Reference,Social-networking,Sports,Travel,Utilities,Video,Weather"), "Games"));
 	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "application/short_version"), "1.0"));
 	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "application/version"), "1.0"));
 	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "application/copyright"), ""));
@@ -386,6 +387,9 @@ void EditorExportPlatformOSX::_fix_plist(const Ref<EditorExportPreset> &p_preset
 			strnew += lines[i].replace("$version", p_preset->get("application/version")) + "\n";
 		} else if (lines[i].find("$signature") != -1) {
 			strnew += lines[i].replace("$signature", p_preset->get("application/signature")) + "\n";
+		} else if (lines[i].find("$app_category") != -1) {
+			String cat = p_preset->get("application/app_category");
+			strnew += lines[i].replace("$app_category", cat.to_lower()) + "\n";
 		} else if (lines[i].find("$copyright") != -1) {
 			strnew += lines[i].replace("$copyright", p_preset->get("application/copyright")) + "\n";
 		} else if (lines[i].find("$highres") != -1) {