Google says images styled with CSS won’t be indexed in Image Search, advising developers to use HTML tags for important visuals.

How Do I Create Multiple Fixed Backgrounds in My CSS File?. Cascading Style Sheets (CSS) level 3, also known as CSS3, introduces multiple background images support. You can list multiple ...

However, the default Kanban visual is quite plain. To infuse more visual appeal, I use the Kanban Background CSS snippet. This snippet allows you to add custom backgrounds to your Kanban boards.