Cluster · Screen & pixels

Display tests.

Two instruments for the glass itself. One fills the screen with solid colors so a single bad pixel has nowhere to hide; the other turns the screen into a ruler you can hold an object against. Both run in this tab, and neither needs anything installed.

• Instrument

  Dead Pixel Test

  Solid color cycling to expose dead, stuck and hot pixels — with a fixer mode for the stuck ones.

• Instrument

  Screen Ruler

  Centimeters and inches on the glass, calibrated against a bank card so the marks match the real world.