请帮我写一个minecraft基岩版ui文件的开始界面ui(start_screen.json),要求是新建一个按钮，让这个按钮点击后显示一个我的世界基岩版一个的弹窗，文本居中显示(文本：§4:)),这并不是要求你写我的世界java版的开始屏幕！

{ "format_version": 2, "minecraft:gui": { "screen": { "animations": {}, "buttons": { "custom_button": { "textures": { "default": "textures/gui/start_button" }, "template": "button", "x": 50, "y": 50, "width": 100, "height": 30, "text": "Play", "text_color": "white", "text_align": "center", "click_handlers": [ { "trigger": "popup", "popup": { "animation": "fade", "width": 150, "height": 100, "background_color": "black", "text": { "text": "§4:)", "text_color": "red", "text_align": "center" } } } ] } } } } } [2024-11-16 19:46:41 | AI写代码神器 | 478点数解答]