You can find similar designs such as our checkerboard and check patterns and checkerboard and check vector custom shapes You can re-color the dot patterns using adjustment layers as well as using color shape layers and also blending with other pattern sets such as line / abstract diagonal patterns and Christmas festive patterns with baubles and trees etc
You can find many tutorials on the site such as how to create new brush strokes for your projects using patterns and tiles
Dot patterns gallery (Volume 24) 100 Colorful tiles PAT / JPG
Dot tile gallery (Volume 45) 100 Amazing dot patterns / tiles PAT / PNG
Abstract dot Photoshop patterns gallery (Volume 57) 100 Unique abstract artwork seamless tiles PAT & PNG format
Photoshop dot patterns gallery (Volume 58) 100 Super colorful tiles PAT & PNG format.
Seamless dots gallery (Volume 62)100 Basic seamless dot tile patterns PAT & PNG format