/SepiaToneTints the entire image in brown sepia tones, like an old photograph.
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/BlueAccentKeeps the rest of the image neutral, reserving blue as the single color accent.
/GreenAccentKeeps the rest of the image neutral, reserving green as the single color accent.
/HighContrastColorBoosts color contrast, with very dark shadows and strongly lit highlights.
/RedAccentKeeps the rest of the image neutral, reserving red as the single color accent.