Sad wallpaper: Unhappy quote, anime sad wallpaper

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- Upgrade to SDK 29
- Fix bugs
- Add more wallpapers
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Are you sad today? Please cry!
Be yourself with these honest wallpapers that don't try to pretend that everything is okay.
Sadness is an emotional pain associated with, feelings of disadvantage, loss, despair, grief, helplessness, disappointment and sorrow. An individual experiencing sadness may become quiet or lethargic, and withdraw themselves from others.