Draw a color flat plan in CAD

Quick answer：

CAD (Computer-Aided Design) is a software used for creating detailed technical drawings. To draw a color flat plan in CAD, you would typically use layers to separate different elements such as walls, doors, and windows. Then, apply colors to each layer to create a color-coded flat plan. CAD software like AutoCAD or Revit offers a variety of tools for drawing, modifying, and coloring elements in a plan.