使用game.addCardPack添加卡牌包时，可以使用closeable:true选项，令此卡牌包可以被关闭

noname/game/index.js

@@ -4482,6 +4482,7 @@ export class Game extends Uninstantable {
 		packagename = packagename || extname;
 		let packname = 'mode_extension_' + packagename;
 		lib.cardPack[packname] = [];
+		lib.cardPackInfo[packname] = pack;
 		lib.translate[packname + '_card_config'] = packagename;
 		for (let i in pack) {
 			if (i == 'mode' || i == 'forbid') continue;

noname/library/index.js

@@ -81,6 +81,7 @@ export class Library extends Uninstantable {
 			return Reflect.set(target, prop, newValue);
 		}
 	});
+	static cardPackInfo = {};
 	/**
 	 * @type { SMap<number> }
 	 */

noname/ui/create/menu/pages/cardPackMenu.js

@@ -164,6 +164,7 @@ export const cardPackMenu = function (connectMenu) {
 
 	var createModeConfig = function (mode, position) {
 		var info = lib.cardPack[mode];
+		let cardPack = lib.cardPackInfo[mode];
 		var page = ui.create.div('');
 		var node = ui.create.div('.menubutton.large', lib.translate[mode + '_card_config'], position, clickMode);
 		if (node.innerHTML.length >= 5) {
@@ -237,7 +238,7 @@ export const cardPackMenu = function (connectMenu) {
 				})(),
 				onclick: togglePack
 			});
-			if (!mode.startsWith('mode_')) {
+			if (!mode.startsWith('mode_') || (cardPack && cardPack.closeable)) {
 				page.appendChild(cfgnode);
 			}
 			else {