See dust before wiping
Use white or bright fills to reveal surface marks you might miss on normal content.
For dust and smudge checks
Make dust, fingerprints, and smudges easier to see
Use solid fullscreen colors before and after wiping a display so surface dirt is easier to spot without confusing it with panel defects.
Why solid colors help cleaning
Bright and dark fills make dust, smudges, and streaks easier to see before and after wiping.
Check after wiping
Switch colors after cleaning to confirm streaks and missed spots are gone.
Separate dirt from defects
Confirm a mark is on the surface, not a stuck or dead pixel on the panel.
Screen cleaning steps
Inspect with solid colors first, clean gently, then verify with a second color pass.
1
Inspect with a bright fill
Open Screen Tester or Custom Themes and use a white or light solid screen.
2
Clean the surface
Use a soft cloth and appropriate cleaner for the display type.
3
Verify with another color
Switch to black or gray and check for remaining streaks or smudges.
Related solutions
Pick a goal and open the matching fullscreen workflow.
White screen
Use a white fullscreen screen for temporary light, dust checks, simple photo lighting, or contrast inspection when a dark screen is not the right tool.
View solutionDead pixel test
Use solid fullscreen colors to inspect monitors, laptops, TVs, phones, and tablets for dead pixels, stuck pixels, bright dots, and dark spots.
View solutionScreen check workflow
Check pixels, uniformity, color, and light bleed with fullscreen patterns before buying, selling, or troubleshooting a display.
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Screen cleaning questions
Quick answers for using solid colors while cleaning a display.
Should I test pixels too?
Yes. Run a dead pixel or color test after cleaning if you want to confirm the panel itself is fine.
Which color shows dust best?
White and light gray usually reveal dust; black can reveal oily smudges.
Can I use this on phones?
Yes. Open the page in the phone browser and use fullscreen where supported.
Make dust, fingerprints, and smudges easier to see
Open Screen Tester, use solid colors in fullscreen, and spot dirt before it looks like a panel defect.
Open screen tester