Microsoft Paint is a simple graphics "paint" program that comes bundled with all modern versions of Microsoft Windows. MS Paint was formerly known as Paintbrush for Windows. The more recent version of this bundled graphics program dates back to around 1992. The program is limited in terms of its ability to save a graphics file in different formats as it only saves files as 24-bit Windows bitmap, 256 color Windows bitmap, 16 color Windows bitmap, and monochrome Windows bitmap formats (all with the .bmp extension); however this adequate for most home users. MS Paint can open JPEG, GIF, and Windows bitmap format files.

Microsoft Paint comes with the following options in its Tool Box: Free-Form Select, Select, Eraser/Color Eraser, Fill With Color, Pick Color, Magnifier, Pencil, Brush, Airbrush, Text, Line, Curve, Rectangle, Polygon, Ellipse, and Rounded Rectangle. MS Paint does not have a freeform "lasso" tool nor the ability to create color gradients.

The "Image" menu offers the following options: Flip/Rotate, Stretch/Skew, Invert Colors, [Image] Attributes, Clear Image, and Draw Opaque. The "Colors" menu allows the user to Edit Colors (only menu option under Colors). The Edit Colors dialog box shows a 48-color palette and 12 custom color slots that can be edited. Clicking "Define Custom Colors" displays a square version of the color wheel that can select a custom color either with a "+" cursor, by Hue/Saturation/Luminance, or by Red/Green/Blue values.

The default colors in the Color Box could be described as the following colors: Black, White, Gray, Silver, Garnet red, Red, Gold, Yellow, Dark Green, Green, Dark Teal, Turquoise blue, Indigo, Blue, Purple (violet), Magenta, Old Gold, Lemon Yellow, Slate grey, Kelly green, Dark Carolina blue, Aquamarine, Midnight blue, Periwinkle, Violet-blue, Coral, and Pumpkin orange.

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