Opera recently fixed the issue that prevented YouTube ads from being blocked in its browsers. But there have been three updates to Opera GX browser since then, none of which seem to have patched anything from the Chromium API.

For reference, the most recent Chromium security patch is from about 3 weeks ago, in version. That basically confirms it is a few versions behind on security fixes. 212 (same as the previous build), unlike the normal Opera browser which is based on Chromium/.114. The about page says that GX is based on Chromium. Neither the announcement on Opera's blog, nor the release notes that were published on its forums mention what other changes were included in the new Opera GX update. Light mode is also available in the Opera GX mobile app for Android and iOS devices.

Well, I suppose it's better late than never. Light Mode has been a much requested feature among Opera GX users since late 2019, it's a bit surprising that it took so long for the company to add the option. If you don't know how to use these, you will need to toggle the Custom Wallpapers option from the Settings page, which will allow you to pick a wallpaper.

Opera gx dark mode disable