Use Auto-Digitize > Click-to-Fill to digitize large artwork shapes with tatami fill, preserving any holes within.
Use Auto-Digitize > Click-to-Outline to digitize boundaries of shapes with run stitching using current properties.
Bitmap artwork consists of colored dots or pixels. When you zoom in on a small area, outlines become jagged and ‘pixelated’. The Click-to-Fill tools in the Auto-Digitize toolbox provide everything necessary to digitize bitmap shapes automatically.