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@hamoid

hamoid/darken-page-bookmarklet.js

Created February 6, 2016 10:32
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Bookmarklet that makes pages dark, by applying white background to everything, then applying filter invert and grayscale
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darken-page-bookmarklet.js
javascript:(function()%20{%20var%20tag%20=%20document.createElement('style');%20tag.type%20=%20'text/css';%20document.getElementsByTagName('head')[0].appendChild(tag);%20tag[%20(typeof%20document.body.style.WebkitAppearance=='string')%20?%20'innerText'%20:%20'innerHTML']%20=%20'*%20{%20background-color:%20white%20!important;%20color:%20#444%20!important;%20%20}%20html%20{%20filter:%20invert(100%)%20grayscale(100%);%20}';%20})();
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hamoid commented Feb 6, 2016

Not perfect, it works on most pages, in some it works partially, and it GitHub somehow it does nothing! :)

@mmccall0813
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If you want an always dark theme on Wikipedia and you have an account, you can go to "preferences", then "appearance", and next to the appearance you have selected, there will be a button called "Custom CSS" click that, then click "Create Page", and paste the following: html,img,video{-webkit-filter:invert(1)hue-rotate(180deg);filter:invert(1)hue-rotate(180deg)}body{background:#000}

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