This Thumbnails icon is a responsive icon. This means that it's optimized for four resolutions, from tiny 16x16 until highly detailed 80x80. The style comes from the latest Microsoft Office, which makes it perfect for any Windows applications, in particular, those with ribbon toolbar control. Unlike other icon packs that have merely hundreds of icons, this monster icon pack contains 15,600 icons, all in the same style and quality.
The logo is of a series of nine small squares in a grid pattern. The grid is three squares wide by three squares tall. The squares are not touching at all, there is an even amount of space between each square.