Ta-da! π
Press and hold (or right-click) the picture to save it.
Pick a tile from the catalogue, then Draw on the canvas β click, or drag to lay a run. Erase takes tiles away. Hover a swatch to see its name and code.
The Fill tool floods a whole connected patch of the same tile at once. Great for backgrounds.
Use Pick (or hold Alt/Option while drawing) to grab the tile that's already under your cursor.
Grout is the real joint between tiles (25 mm tiles, 1.97 mm joints β see the size under the width/height). It follows day/night: light grout by day, dark by night. Grid is a faint guide overlay, not in the saved image.
Drag a box with Select and a little menu pops up β Copy, Mirror, Flip, Delete. Copy, then Paste and tap over the canvas to stamp it anywhere.
In the selection menu, Mirror β / Flip β reflect those tiles in place. While placing a paste they reflect the stamp β perfect for symmetry: copy β paste β mirror β stamp beside the original. (Keys H / V.)
Scroll to zoom, Space+drag (or two fingers) to pan. Tap π or press 0 to snap back to 100%.
Press and hold (or right-click) the picture to save it.