Aside from 'pencil' and 'shape' tools and a brush that draws in 24 'brush shapes and patterns', the toolset also contained two features unique for the time: one the ability to draw Bézier curves and the other that forces lines to be drawn on three angles to create an isometric three-quarter perspective. It was a licensed version of ZSoft Corporation's PC Paintbrush that shipped with 24 tools and can read and write files only in the proprietary 'MSP' format drawn in monochrome graphics.

The first version of Paint was programmed by Dan McCabe and introduced with the first version of Windows, Windows 1.0, in November 1985 as a competitor to Macintosh's MacPaint. Microsoft eventually reversed course and announced an updated version of Paint in Windows 11, with Paint 3D being deprecated.

However, Paint had continued to be included with Windows 10. Microsoft had happened to envision Paint 3D as a replacement. In July 2017, Microsoft added Paint to the list of deprecated features of Windows 10 and announced that it had become a free standalone application in Microsoft Store. For its simplicity and wide availability, it rapidly became one of the most used Windows applications, introducing many to painting on a computer for the first time. The program can be in color mode or two-color black-and-white, but there is no grayscale mode. The program s, modifies and saves image files in Windows bitmap (BMP), JPEG, GIF, PNG, and single-page TIFF formats. Paint is a simple raster graphics editor that has been included with all versions of Microsoft Windows. IA-32, x86-64, and ARM (historically Itanium, DEC Alpha, MIPS, and PowerPC)

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