Paint — Windows 98 Simulator

Paint (still called Paintbrush a few years earlier) was the first program most people used to draw on a PC. The Windows 98 version has the 16-tool toolbox on the left, the colour box at the bottom, and saved pictures as .bmp files that doubled as desktop wallpaper.

MS Paint from Windows 98 with all 16 tools: Free-Form Select, Select, Eraser, Fill With Color, Pick Color, Magnifier, Pencil, Brush, Airbrush, Text, Line, Curve, Rectangle, Polygon, Ellipse and Rounded Rectangle.

Aliased pixel drawing like the original, View > Zoom up to 8× with a grid, and pictures are saved as genuine 24-bit .bmp files you can download or set as your desktop wallpaper.