The Swap All Colors tool paints block patches of the same color in the entire quilt using fabrics or colors from the Sketchbook.
Click on a patch to replace the fabric, anywhere it appears on the quilt, with the selected fabric.
You can also Drag and Drop a fabric swatch on similarly colored patches of matching blocks in the layout. Select a fabric in the palette. Click, hold and drag that fabric swatch from the palette to the quilt layout. With the arrow cursor directly over the patch you want to color, release the mouse to drop the fabric on that patch. All patches colored with the same fabric in the quilt will color with the new fabric swatch. Hold the CTRL (Command) key down and drag to a patch to replace the fabric currently in that patch, anywhere it appears in that block and all other matching blocks. Hold the ALT (Option) key down and drag to a patch to replace the fabric currently in that patch, anywhere it appears in that block and alternating blocks in the quilt with the same fabric colors.