Open a fullscreen red screen for monitor review, simple display checks, and solid-color background use.

RGB Channel Check

Fullscreen color screen with diagnostics-first controls

Use red shades to inspect stuck subpixels and color uniformity across the panel.

Shade Ladder
Advanced Options
Keyboard: F fullscreen, Esc exit, / shade step.
Use This Screen For
Best For Best for red-channel issues and tint checks.
Limitations Not a full panel diagnostic alone; rotate through green/blue/white/black.
Selected: --
Hex --
Mode Manual

A computer once beat me at chess, but it was no match for me at kick boxing.

Emo Philips

CodersTool Categories