Drawing and colour tools

1. Choose Pencil or press B.
2. Choose the primary colour and set the brush size and shape.
3. Press and drag on the canvas.

Pencil joins the sampled points in a stroke, so quick pointer movement still produces a continuous pixel line. Right-click and drag to erase instead of painting. Pencil works with brush shape, brush size, symmetry, and Tile drawing.

1. Choose Eraser or press E.
2. Set the brush size and shape.
3. Drag over pixels to make them transparent.

The checkerboard shows the transparent area. Eraser does not paint the secondary colour. It works with symmetry and Tile drawing.

1. Choose Fill or press G.
2. Choose the new primary colour.
3. Click inside the area to change.

Fill changes one connected area of an exact colour. Pixels connect through their top, bottom, left, and right edges; pixels that touch only diagonally are separate.

On a fixed canvas, the current brush, symmetry, and Tile drawing settings affect the matched points. Use a 1 px brush and turn those modifiers off for an exact fill. Large expandable-canvas fills show progress and ask before painting a region of at least 250,000 pixels.

1. Choose Replace color.
2. Choose the replacement as the primary colour.
3. Click a pixel containing the colour to replace.

Replace color changes every exact match on the active layer, not just one connected area. It has no similarity or tolerance setting.

On a fixed canvas, use a 1 px brush with symmetry and Tile drawing off for an exact one-for-one replacement. Expandable Projects replace matching stored pixels directly.

1. Choose Eyedropper or press I.
2. Click the pixel you want to sample.
3. The sampled colour becomes primary and Pencil becomes active.

Eyedropper reads the active layer, not the combined appearance of all visible layers. Transparent or partly transparent pixels may produce an eight-digit RGBA hex colour.

1. Choose Dither brush or press D.
2. Choose a primary colour and brush size.
3. Press and drag to paint an alternating darker pattern.

Dither paints a darker shade on alternating pixel coordinates. Right-click and drag erases with the same pattern. Brush size, shape, symmetry, and Tile drawing all apply.