Coverage heatmap

The coverage heatmap is drawn in real time as you grade. Each grid cell stores:

• Latest cut/fill error — color-coded.
• Pass count — how many times you covered that cell.
• Achieved final grade — true if error is within the mode's on-grade band (±0.5″ Tiling, ±1.5″ Excavator, ±1″ others).

Color scheme:

• Green — final grade achieved (within the mode's on-grade band). Green is reserved for done.
• Blue — overcut more than 1″ below grade.
• Yellow / Orange / Red — roughly 1 / 2 / 3+ cutting passes remaining, computed as remaining error ÷ Max Cut Per Pass.

Cell opacity rises slightly with pass count.

Disable on map: Settings → GRADING → Draw on Map.