A desk signal for an automated screenshot comparison
Status Light can display an attention signal from an automated screenshot comparison through a configured software integration. A detected difference is not automatically a defect, and no detected difference is not proof that an entire interface works. Define the comparison's scope and keep the images available for inspection. The lamp should help you notice results while preserving their practical limits.
Which comparison does the signal represent?
Track the tested revision, reference baseline and capture environment. A comparison against an unintended baseline can produce a technically valid result with little relevance to the current change. Keep the source report link alongside the integration's task identity.
Make the selected pages and viewport conditions visible in the detailed report. A result from one screen size should not appear to certify every layout. If the capture process fails, represent that separately from a successful comparison that found a visual difference.
How should differences be classified?
Use the comparison tool's documented result categories and thresholds. Do not invent a universal tolerance or assume that every changed pixel matters equally. Rendering variation, dynamic content and intended design changes can all influence the output.
Keep the raw comparison evidence available through the report. A physical attention cue can point to a review task without deciding whether the baseline should be updated. That decision needs the actual images and the purpose of the change, not just a colour.
What should a clean result mean?
Describe it as no difference detected under the configured comparison conditions. It does not establish keyboard access, correct data handling or every interaction path. Keep other checks separate rather than allowing this one signal to imply complete application quality.
If several pages share the light, aggregate their results deliberately. A clean final page should not conceal an earlier comparison that needs review. Preserve incomplete or failed captures in the summary so missing evidence does not count as a passing comparison.
How should the bridge be tested?
Exercise a known unchanged capture, an intentional visible change and a capture failure in a controlled environment. Confirm that the report links and revision references match the displayed summary. Test an outdated result arriving after a newer run so stale evidence cannot overwrite the current task.
Leave baseline approval in the appropriate review workflow. The Status Light configuration context describes the physical device; the integration should connect comparison evidence to human attention while keeping capture success, visual differences and approval as distinct states.