White Balance with Pick White and the RGB Parade
A tungsten-lit colour chart corrected on the scopes: the RGB parade shows the cast, Pick white on a grey step neutralises it, the traces line up and the vectorscope centres, then warmth goes back on its own layer, dialled in with Opacity.
Color grading tutorial · chapter 3 White Balance and Color Temperature Why casts happen, how Temperature and Tint work, how to neutralise a shot on the parade, and how to add warmth on purpose. Read the chapter