Adjust light
Choose Adjust in the left navigation. Tone, colour, curves and sharpening share this panel as collapsible sections below one histogram, and a dot beside a section name shows that it has been edited. Open Tone for Auto tone, exposure, brightness, contrast, highlights, shadows, whites, blacks and gamma. Sliders and number fields change the same value. A section's Reset clears only that section; Reset all in the panel header clears every Adjust section.
Correct colour
Open the Colour section in Adjust for Auto white balance, temperature, tint, saturation and vibrance. Use the white-balance eyedropper beside Auto white balance on a neutral area. Open Selective colour to adjust hue, saturation and luminance for individual colour ranges.
Choose Auto tone in the Tone section for a conservative black point, white point and midtone correction. Choose Auto white balance in the Colour section to estimate temperature and tint from neutral areas. Both actions create normal editable settings and can be undone. If no neutral area is found, use the white-balance eyedropper instead.
To replace a colour, choose Replace a colour in the Colour section, then choose Pick source colour and click an opaque pixel in the photo. Choose a New colour and adjust Colour tolerance to widen or narrow the match. Preserve shading keeps the original lightness; disable it to use the chosen colour directly. Replacement strength and Enable colour replacement let you adjust or hide the result. Choose Back to colour adjustments to return to the Adjust panel.
Curves and levels
Open the Curves & levels section in Adjust to adjust the RGB tone curve or the individual red, green and blue channels. Black point, white point and midtones control levels. Before shows the unadjusted source; Compare opens a split preview. Use 100% to inspect detail.
Brightness, Whites, Blacks and Gamma are under More tone controls in the Tone section. Exposure, Contrast, Highlights and Shadows remain directly visible.