About this app

Turn your screen into a pure color light. The simplest single-color screen app for use as a penlight, nightlight, photo backlight, display test, and more. [Key Features] ■ Full-Screen Solid Color Fill the entire screen with any color you choose. ■ Precise Color Picking Pick colors using a color wheel, HSV/RGB sliders, or HEX input. ■ Favorites Save colors you love and recall them with a single tap. ■ Scene Animations Built-in presets: Rainbow, Candle, Thunder, Aurora. Or compose your own gradients and blinks. ■ Lock Mode (Unique) Lock the screen so taps won't change anything. Long-press for 3 seconds to unlock. Perfect for nightlight or photo shoots where you don't want accidental changes. ■ Display Test Cycle through 8 colors to check screen color reproduction. Useful for repair, calibration, and quality checks. ■ Auto-Max Brightness Automatically pushes the screen to maximum brightness on launch. Sleep prevention is built-in. ■ Landscape Support Works seamlessly in portrait and landscape. [Perfect for] - Penlight at concerts and live events - Gentle nightlight for kids and babies - Backlight or color source for photography - Color reproduction checks for displays - Using your phone as a portable light

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Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

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