IntGrid layers are grids of Integer values (ie. 0, 1, 2, etc.). Each value has an associated custom color.
How to use them
Open the LAYERS panelCreate an INT GRID layerOptionally, you may adjust settings or add valuesUse LEFT click to drawUse RIGHT click to eraseHold SHIFT + click and drag to draw a rectangle (right click to erase)Use SHIFT + a single click to fill an entire area