Study your reference, then check your drawing against it.
Squint blurs the reference and groups it into a few values, so you see the big shapes first. Check lays your drawing over it as an outline, lined up for you.
You can also drop or paste an image. Pictures never leave this device.
Fitted puts the boundaries between the picture’s own groups of value. Even spaces them equally from black to white.
As seen paints each band its average value. Value scale spreads the bands evenly from black to white.
The color around the picture changes how light or dark it looks. A neutral mid gray gives the most honest read.
Auto follows your device’s setting. On and Off choose for this page.
The slider under View crosses from the reference alone to your drawing alone. Drift adds its arrows and score to any view.
Saves what’s inside the frame.