Pattern Builder
Internal tool
1. Set the area
This sizes the dashed boundary on the board. Change it any time — tiles already placed stay put.
2. Add tiles
New tiles stack near the top-left of the board. Drag each one out to where it belongs. Add as many sizes as you need, one at a time.
Editing a placed tile
Click a tile to select it — resize or delete it from the panel above the board. Drag it anywhere to reposition.
Click a tile to select it — resize or delete it from the panel above the board. Drag it anywhere to reposition.