SpectraSync

SpectraSync gives the web a calmer, more personal look with a single click. Open the toolbar popup, pick a color and strength, then apply it to the current tab. A lightweight overlay tints the page without changing the site’s content, so text stays readable while glare and harsh contrast soften. If you like a specific look on a site, you can remember that color for the current host and reuse it next time with one tap. Preferences are stored locally by default, and you can enable Firefox Sync to carry your defaults and per-site choices to your other devices. There are no site-wide permissions; the content script runs only when you press Apply. Everything is done with safe, local browser APIs—no tracking, no remote code, just a quick way to make pages feel right for your eyes.