Fill
The Fill tool (Shift B) paints filled areas with a round dab — like coloring in. Overlapping strokes of the same fill merge into a single clean shape.
Paint
Drag to paint. Paint over an existing area of the same fill to grow it; the result is one shape, not a pile of strokes.
Options
| Option | What it does |
|---|---|
| Size | Dab diameter. [ and ] change it. |
| Pressure | With a stylus, pressure changes the dab size. Sensitivity sets how much. |
| Keep selected | The new shape stays selected, so the next stroke keeps growing it. |
| Selected only | Merge only with selected shapes of the same fill and appearance. |
Tip: Fill is great for flat color under line art: draw the lines with the Brush, then color the areas with Fill on a layer below.