Customize theme for AEM components

{
   "globalCssText":"@import url('https://fonts.googleapis.com/css2?family=Grandstander:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Montserrat:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');",
   "fontNames":"Grandstander",
   "cardLayout":{
      "cardLayoutName":"Custom1",
      "cardPrimaryColor":"#376BA4",
      "cardSecondaryColor":"#F98EB0",
      "startedStateTextColor":"#ffffff",
      "continueStateTextColor":"#ffffff",
      "revisitStateTextColor":"#ffffff",
      "startedStateColor":"#a0a0a0",
      "continueStateColor":"#f9a122",
      "revisitedStateColor":"#7fbc64",
      "textPrimaryColor":"#ffffff",
      "textSecondaryColor":"#d93f3f",
      "navIconColor":"#a0a0a0"
   }
}