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The format
Quentin Ligier edited this page Feb 28, 2023
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The dynamic wallpaper information is stored in the "apple_desktop:solar" (xmlns:apple_desktop="http://ns.apple.com/namespace/1.0/") XMP metadata.
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ap: dict. The light/dark theme automation.
- d: int. The image index for the dark theme.
- l: int. The image index for the light theme.
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si: array of dict. The solar-based dynamic
- i: int. The index of the image to use. You can use multiple times the same image and store it once.
- a: float. The elevation of the sun at the time and place the image is (supposedly) taken.
- z: float. The azimuth of the sun at the time and place the image is (supposedly) taken.
The dynamic wallpaper information is stored in the "apple_desktop:h24" XMP metadata.
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ap: dict. The light/dark theme automation.
- d: int. The image index for the dark theme.
- l: int. The image index for the light theme.
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ti: array of dict. The time-based dynamic
- i: int. The index of the image to use. You can use multiple times the same image and store it once.
- t: float. The time when to change. It is between 0 and 1, 0 being 0:00, 0.25 is 6:00, 0.5 is 12:00, etc.
The dynamic wallpaper information is stored in the "apple_desktop:apr" XMP metadata. It allows automatically choosing an image depending on the light or dark theme used.
- d: int. The image index for the dark theme.
- l: int. The image index for the light theme.
It requires knowing the solar position at the current position of the user.
This one is easy. The i value (in ti entries) is a decimal number between 0 and 1, and is a simple mapping of the daytime:
- 0.00 is 0:00
- 0.25 is 6:00
- 0.5 is 12:00
- 0.75 is 18:00
- 1 is 0:00 again
- 0.333 is 4:00
- 0.02083 is 0:30
Simply take the image corresponding to the current theme (light or dark).
They did much of the work: