Panasonic Lumix GX8 - Manual (Page 111)

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3. Recording Modes
This effect adds a bright, soft and nostalgic feel to the overall
image.
This effect adds a bright, airy and soft feel to the overall image.
This effect adds a dark and relaxing feel to the overall image and
enhances bright parts.
[Old Days]
Items that can be set
Contrast Low contrast High contrast
[High Key]
Items that can be set
Color Pink emphasized
Aquamarine
emphasized
[Low Key]
Items that can be set
Color Red emphasized Blue emphasized