how to create a coloring book

body.custom-background{--wpr-bg-38a37d5f-ce10-4706-ba2f-3dbd14677ea3: url('https://www.cushtube.com/wp-content/uploads/2025/10/cushtube-background-image-1.png');}.rll-youtube-player .play{--wpr-bg-5c978bdd-033d-4c50-84d7-6b93d0759692: url('https://www.cushtube.com/wp-content/plugins/wp-rocket/assets/img/youtube.png');}