The tone curve / histogram palette
Click the tone-curve/histogram button to display the palette.
Channel list box
Color-histogram button
Smooth curve button
Freehand curve button
Tone curve
White, gray, and black-
point buttons
Apply button
Histogram
Input shadow, gamma,
and highlight text boxes
Input shadow, gamma,
and highlight sliders
Output shadow and high-
light text boxes
Output shadow and high-
light sliders
Auto-setting button
Reset button
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