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What is TOC (Touch of Color)?
Samsung's Touch of Color design embeds red colored accents in the bezel of some LCD monitors for a stylish, unique new look. The TOC design is purely cosmetic.
Touch of Color is simply a cosmetic design feature, not a light, function or setting. Touch of Color cannot be turned on, enabled or adjusted, since it is not an electronic feature.
An example of a Samsung monitor with TOC:
The red color is embedded in the plastic of the bezel. It is not a light, and you can not adjust the color.