Background Changer is a lightweight website widget that lets you and your visitors set 124 backgrounds—104 SVG graphics and 20 gradient themes—over your site’s existing design. Install it with a single line of code and control overlay mode, transparency, contrast, saturation, and speed.
Choose from 22 skins and 10 button positions, and encourage shares to six social platforms. The widget works on modern browsers, is fully responsive, and ships as three files plus an SVG folder under 2 MB.