Panasonic LUMIX DMC-GM1 Operating Instructions For Advanced Features page 97

4. Recording Modes
[Bright Blue Sky]
[Romantic Sunset Glow]
[Vivid Sunset Glow]
On a sunny day, the overall screen brightness is increased to
create a vibrant image of the blue sky.
The enhanced purple tone creates a romantic image of the
sky just after sunset.
Red is enhanced to create a vivid image of the sunset.
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