v0.2.2

Pen-tablet support is the focus of this release, plus a few workspace fixes.

Pen & tablet

• Pressure calibration — a new Preferences → Stylus section lets you tune how your tablet's pressure maps to output: Min/Max input range and a Sensitivity curve, with a live response-curve preview. Compensate for a stiff tablet that won't reach 100%, or tame an over-sensitive one.
• Adjustable pressure floors — set the minimum size and minimum opacity that light pressure produces (so a big brush can taper down to a hairline instead of stopping at 25%).
• Pressure toggles — independent Pressure → Size and Pressure → Opacity switches in the brush options bar.
• All of the above persist across launches.

Fixed

• Pen pressure no longer eats your strokes — easing off pressure over an area you'd already painted in the same stroke was incorrectly lowering its alpha. Opacity now only builds up within a stroke, never drops.

Improved

• Fit on Screen now scales the document to fill the window instead of snapping to 100%.
• Layer thumbnails respect the document's aspect ratio instead of squaring everything off.
• Guides & rulers — the ruler corner matches the ruler color, and dragging from it pulls out a paired horizontal + vertical guide at once.