Size and perfect circle
In the circle generator, set Width/Height, or enable Circle (same width and height) and Diameter (max ~300). Keep width/height independent for ellipses; lock for true circles.
Larger diameters cost more blocks and Survival time — validate centering on a small diameter first. Recommended practice range for learning: diameters under ~64 before committing to arena-scale rings.
Thin, thick, filled
Style: Thin, Thick, or Filled — outlines for frames/rings, filled for disks/platforms. Re-read Blocks per row after changing style; counts are not interchangeable across styles.
Reading preview and rows
The red center cell helps alignment; rows count top to bottom. Use Blocks per row as your in-game checklist. Failure modes: building from the wrong end of the row list; ignoring the center mark so the ring drifts.
Export and related tools
Print/PDF, PNG, CSV. Spheres (layered): sphere. Banners: maker, letters. Overview: shapes & banners. Also PNG and CSV.