Last updated: 2026-10-03.
Event Colors+ is published by Pierre Chevallier, sole trader registered in France, contact: pro.pierre.chevallier@gmail.com. Event Colors+ is not affiliated with, endorsed by or sponsored by Google. Google Calendar is a trademark of Google LLC.
Event Colors+ changes the colors of events displayed on calendar.google.com in your browser, according to rules you create (for example, "if the title contains meeting, use green"). The colors exist only in your browser: they are not sent to Google, not visible on mobile, and not visible to people you share calendars with.
None. The extension does not collect, transmit, sell or share any personal data. It reads the text of the events shown on the page only to decide which color to apply, and it does so entirely inside your browser. Your rules are stored locally (chrome.storage); if you enable Chrome sync and Pro, Chrome may synchronize them across your own devices under Google's privacy policy.
If you activate a Pro license, the key you enter is sent to Gumroad (Gumroad, Inc.) to verify the purchase, at activation and then about once a week. Gumroad's privacy policy applies to that request: gumroad.com/privacy. No other data is sent.
storage — save your rules and settings.alarms — schedule the weekly license check.calendar.google.com — needed to color the events displayed on that site.api.gumroad.com — requested only when you activate a Pro key.We hold no personal data about you, so there is nothing to access, correct or delete on our side. Questions: pro.pierre.chevallier@gmail.com.
If our practices change, we will update this page and the extension's store listing.