: Indicates a visual modification. Standard iOS dark modes often use dark gray background tones. An "OLED" mod overrides these elements with hex code #000000 (pure black). On iPhone models with OLED or Super Retina displays, pure black pixels turn completely off. This saves battery life and improves contrast in low-light environments.
If your iOS version supports it, TrollStore is the gold standard. YouTube--OLED--v.19.02.1--uploadedBy-ipabnb.ipa - Starfiles