What group of elements does the shaded area in the following periodic table indicate? 
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Color Saturation
The intensity of a color expressed, indicating how much it is free of white or gray.
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Blocks of continuous text separated by a return character, often structured with common formatting.
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A formatting style where the text in a paragraph is aligned to the center of the containing document or area, often used for titles or headings.
Color Cast
A situation in photography or video where the color of the image is skewed or tinted, often due to incorrect white balance settings.
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