add explosion background

apps/imgclock/custom.html

@@ -16,6 +16,7 @@
         { img:"122240.png", bpp : 8, x:56, y:20, align: 1, col:"#FFFFFF", name:"Cityscape", attrib:"getwallpapers.com", attribLink:"http://getwallpapers.com/collection/8-bit-wallpaper", description:"" },
         { img:"122271.png", bpp : 8, x:10, y:125, align: -1, col:"#FFFFFF", name:"Sunset", attrib:"getwallpapers.com", attribLink:"http://getwallpapers.com/collection/8-bit-wallpaper", description:"" },
         { img:"thisisfine.png", bpp : 8, x:53, y:5, align: 0, col:"#000000", name:"This is fine.", attrib:"Gunshow #648", attribLink:"https://knowyourmeme.com/memes/this-is-fine", description:"" },
+        { img:"explode.png", bpp : 8, x:0, y:145, align: 0, col:"#FFFFFF", name:"Boom.", attrib:"", attribLink:"", description:"" },
       ];
 
       document.querySelector(".columns").innerHTML = faces.map((face,facenumber)=>`