This Change Theme icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 4,600 icons, all in the same style and quality.
This icon represents change theme. It includes two square shapes overlapping each other. Both squares have two smaller squares with a line across the top of them. One square has a lot of dots in the bottom half and one with less dots just across the top and inside the smaller squares.