Generally works well. Of course, there are cases when it hangs or makes a page unintelligible (for example, yandex.ru/search/?text=asdf shows a blank window). Fortunately there is an option to not apply to specific sites. Also the feature to resize/move the extension window is badly needed, to enjoy WYSIWYG effect). The manual would be handy.

It works really well on all short websites. If the webpage is longer, the extension slows down the browser.

The whole extension gives me a really good feel, with a lot of filters that have been configured by default, but there are performance issues on some sites. When I open https://www.acfun.cn/u/13400653.

诶，cpu带不动，太卡了

the best extension for coloring webpages with many customiziations,but slows down a little bit my computer.

not very much

It works well, and the colors it chooses are quite good. Still, when opening a new tab, there is a momentary flash of white, which then reverts to normal empty dark gray. It's quite jarring. The flash doesn't happen when the extension is disabled. This couldn't be solved with userChrome.css nor with userContent.css customizations. Nor did setting the browser background color in about:settings help. Can you look into it, please?

Almost satisfactory. Some issues with the popup menu - the UI behaves strangely when placed in Firefox's Overflow Menu. It either doesn't adapt to the menu's shape, or it forces itself to shrink to match the popup's width, making everything tiny and makes it difficult to change the addon's settings.

I transitioned from Dark Reader to Midnight Lizard. The customization is much easier.

My biggest wish is to change the PDF color's in Firefox's built-in viewer.