If a photo has an unwanted color tint from the room lights, what specific editing tool helps you fix the overall color balance to make white objects look truly white?

The specific editing tool that helps fix the overall color balance to make white objects look truly white is White Balance. White Balance is the process of adjusting the colors in an image so that objects that appear white in real life are rendered as white in the photograph, thereby removing any unwanted color casts. These color casts occur because different light sources, such as incandescent bulbs, fluorescent tubes, or natural daylight, emit light at different color temperatures, leading to an overall tint in the image, like a yellowish or bluish cast. The camera's automatic white balance can sometimes misinterpret these lighting conditions. The White Balance tool in image editing software primarily works by adjusting two main parameters: Color Temperature and Tint. The Color Temperature setting compensates for the warm, yellow-orange, or cool, blue, tones in a photo, often measured in Kelvin (K). Moving this slider towards a cooler temperature adds blue to the image, correcting for a warm, yellowish tint, while moving it towards a warmer temperature adds yellow, correcting for a cool, bluish tint. The Tint setting addresses green or magenta color shifts, which are common with certain artificial light sources, such as the green cast often introduced by fluorescent lights. Adjusting the tint slider adds either magenta or green to the image to neutralize these specific color casts. To specifically make white objects look truly white, the most effective method involves using the White Balance Eyedropper Tool, sometimes referred to as a Color Picker or Sampler, found within the White Balance controls. To use this, you activate the Eyedropper Tool and then click it directly onto an area within the photograph that you know *shouldbe a neutral white or a neutral gray. Upon clicking, the editing software analyzes the color values of the selected pixel or area. It then automatically calculates and applies the necessary adjustments to both the Color Temperature and Tint settings for the *entire imageto make that selected neutral point perfectly achromatic, meaning without any color cast. This correction causes all other colors in the image to shift accordingly, resulting in an overall accurate color balance where white objects appear genuinely white and all other colors are true to life.