High Contrast is a productivity chrome extension. it's a free extension , it has 400,000+ active users since released its first version, it earns an average rating of 3.47 from 5,906 rated user, last update is 2916 days ago.
High Contrast lets you browse the web with your choice of several high-contrast color filters designed to make it easier to read text. When you install this extension, all pages are "inverted", so black becomes white and white becomes black. Press the "browser action" icon in the toolbar to toggle it on and off, or customize your settings on a per-site basis. Use a convenient keyboard shortcut to quickly change your settings while you browse. Other extensions try to change the default colors, but this ends up breaking many popular websites. Only this extension applies filters to your page that invert almost everything - the only exception is photos, which are left alone. Also note that the Chrome web store and other built-in pages like the New Tab page and Settings pages are unaffected - extensions like this one are not allowed to modify them, by design.
You could download the latest version crx file or older version files and install it.
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You could find more help information from high contrast support page.
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Seems pretty good for my usage, which is reading text-heavy sites at night with inverted colors for sites that don't have their own dark mode. Something that would make it much more useful for this use case is an option to only enable the inverted modes when night mode/dark themes are enabled. It's pretty easy to do this nowadays with just CSS: `@media (prefers-color-scheme: light)` (see https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme). I have enabled this in my local fork and I'm satisfied with the results.
It constantly toggles off. I had hoped for something that behaved similar to the Windows High Contrast mode but this does not. Slightly disappointed.
3 huge problems with this extension: 1. Doesn't change built in pages (like this store). 2. Inverts images (says it doesn't, but it does) 3. *FAILS* constantly. I regularly have to reload pages to get it to go back to inverted colors and then it goes away again (Google Drive, & Sheets revert all the time, ESPN does any time I first load a page, The apps script editor does any time I go to triggers or executions - well, you get the idea). Why don't the developers give us a built in smart invert like iOS has? Apparently the Apple programmers are smarter than the Chrome programmers.