Replace #FFFFFF rgb(255, 255, 255) backgrounds in #ECF2EA rgb(236, 242, 234),is more natural ergonomic color for your eyes, natural contrast.
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// ==UserScript==
// @name defBackgroundUp
// @description Replace #FFFFFF rgb(255, 255, 255) backgrounds in #ECF2EA rgb(236, 242, 234),is more natural ergonomic color for your eyes, natural contrast.
// @include *
// @grant none
// @namespace https://greasyfork.org/en/users/3561-lucianolll
// @namespace https://openuserjs.org/users/lucianolll
// @namespace https://userscripts.org/users/46776
// @version 10
// ==/UserScript==
var confBackg=function(){
var doc=document,getref=['body','table','td','div','html','dl','ul','pre'],
abg=function(tg){return function(d){return getComputedStyle(tg[d],null).backgroundColor=='rgb(255, 255, 255)';}},
ts=function(tg){return function(d){return tg[d].style;}};
for(var a=8,n=0,tag,at,tf,tmp=[];a--;){
tag=doc.getElementsByTagName(getref[a]);at=abg(tag);tf=ts(tag);
for(var i=tag.length;i--;){if(at(i)){tmp[n++]=tf(i);}}
} tmp.forEach(function(s){s.backgroundColor='#ecf2ea';});tmp=null;
};
addEventListener('load',confBackg,false);