[Feature request] Increase the function of adjusting contrast

Rain92 / UltimateMangaReader

A feature-rich online manga reader for Kobo E-Ink devices based on Qt5.

GNU Affero General Public License v3.0

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Open WeihuaGu opened 2 years ago

WeihuaGu commented 2 years ago

Because the downloaded cartoon pictures are deep and shallow, Increase the function of adjusting contrast