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DevTheme Tester - Native Light and Dark Mode Toggle icon

DevTheme Tester - Native Light and Dark Mode Toggle

Developer utility to force-test Light/Dark native CSS media queries via Debugger API.

Users68Current public install base
Rating5.0Store average score
Reviews1Public review volume
Manifest versionV3Extension platform version
7-day growth-2Net users gained this week
7-day growth rate-2.86%Relative weekly velocity
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User Growth Over Time

57606366692026年7月11日2026年7月14日2026年7月17日Latest: 68
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7-day rating change

Start
5.00
Latest
5.00
7-day rating change
0.00
4.904.955.005.055.102026年7月11日2026年7月14日2026年7月17日Latest: 5.00
2026年7月11日2026年7月17日
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1-day growthFlat
00%
7-day growthDeclining
-2-2.86%
30-day growthGrowing
+3+4.62%
Technical snapshot

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Version1.0
ManifestV3
Size16.16KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

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The high-precision tool for web developers to test Dark and Light mode themes instantly, regardless of site security policies.

Are you tired of digging through Chrome DevTools' deep "Rendering" menu just to toggle prefers-color-scheme? Do other dark mode extensions fail on your local development sites because of strict Content Security Policies (CSP)?

DevTheme Tester is a minimalist, open-source utility designed specifically for the modern web development workflow. It provides a one-click solution to force-test your CSS media queries using the high-level Chrome DevTools Protocol (CDP).

Why DevTheme Tester?

Most "Dark Mode" extensions work by injecting custom CSS or running scripts on the page. While fine for general users, these methods are unreliable for developers because:

They don't trigger actual CSS @media (prefers-color-scheme) queries.

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Store average score5.0Chrome Web Store aggregate rating, including ratings without synced review text
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Reviews with text0Synced review bodies
Total ratings / reviews1Chrome Web Store public rating/review count

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