Want to affect everything but something? Key or put a window on what you don't want, then work "outside" your selection. In Resolve, make a new "outside" node. In Apple Color change this drop down: I used this technique to...
Use windows to limit keys to a specific are of an image so they don't pick up similar colors in another part of the frame. Example - Key a sky to make it more vivid, but someone is wearing blue....
Use soft circle windows to brighten up or darken faces as needed, especially to compensate for dark or aggressive looks. Face windows/vignettes are very common in coloring, and can be a great tool in your workflow. This may seems like...
In Apple Color secondaries, there are three views for window or key selections - the final output, isolated color, & the matte. The matte view is probably the most useful of these for fine tuning keys because you can see...
Key Tolerance vs. Key Blur - Tolerance ramps down the colors that are keyed instead of a hard stop. Blur softens the matte. Use tolerance to fine-tune a key that won't pick up something fully. Use key blur to soften...