{"background_color":"#1f2430","description":"免费在线节拍器：30–240 BPM、拍号与细分、点拍定速，练琴跟练必备。","display":"standalone","icons":[{"sizes":"192x192","src":"/icon-192.png","type":"image/png"},{"sizes":"512x512","src":"/icon-512.png","type":"image/png"}],"name":"在线节拍器","short_name":"节拍器","start_url":"/","theme_color":"#1f2430"}