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White background replacer

Replaces the background white color with a darker color in order to decrease eye strain

当前为 2022-11-09 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         White background replacer
  3. // @namespace    http://siavoshkc.com/
  4. // @version      2.1
  5. // @description  Replaces the background white color with a darker color in order to decrease eye strain
  6. // @author       siavoshkc
  7. // @match        *://*/*
  8. // @grant        none
  9. // @license      MIT
  10. // @run-at       document-idle
  11. // ==/UserScript==
  12. const goodBgColors = ["#b0edc4", "#79d2a6", "#80e5ff", "#79C664", "#64C6B6","#4DD7C0","#B1CE61", "#61CEB2", "#66C0A9",
  13.                       "#6BA6D2", "#4295D3", "#7190DB", "#D97FD5", "#D97FC0","#D97F7F", "#7FD7D9", "#7FD997", "#87D97F",
  14.                       "#D9BD7F", "#DDA279", "#73CA70", "#7092CA", "#7CCA70", "#ACCA70,", "#9B70CA", "#70CA82", "#7599E0"]
  15. const INTERVAL = 120000
  16. var currentGoodBgColor = 0
  17.  
  18. function isWhite(bg)
  19. {
  20.     return (
  21.         bg == "white"||
  22.         bg == "#ffffff"||
  23.         bg == "#FFFF"||
  24.         bg == "#FFF"||
  25.         bg == "#fff" ||
  26.         bg.replace(/ /g,'') == "rgb(255,255,255)"||
  27.         bg.replace(/ /g,'').substring(0, 16) == "rgba(255,255,255"
  28.     );
  29. }
  30. function changeColor(style) {
  31.     style.backgroundColor = goodBgColors[currentGoodBgColor % goodBgColors.length]
  32.     if(style.color == style.backgroundColor) style.color = "black";
  33.     if(currentGoodBgColor === Number.MAX_SAFE_INTEGER) currentGoodBgColor = 0;
  34.     else currentGoodBgColor++;
  35.     setTimeout(changeColor, INTERVAL, style)
  36.  
  37. }
  38. function checkPage()
  39. {
  40.     'use strict';
  41.     console.log("White background replacer...");
  42.  
  43.     if(document.styleSheets.length === 0) changeColor(document.body.style);
  44.     else
  45.     {
  46.         for (let sheet of document.styleSheets) {
  47.             try{
  48.                 let rules= sheet.cssRules;
  49.  
  50.                 for (let rule of rules) {
  51.  
  52.                     if( rule?.style && isWhite(rule.style?.backgroundColor)){
  53.                         changeColor(rule.style);
  54.                     }
  55.                     if (rule?.cssRules) {
  56.                         for (let innerRule of rule.cssRules) {
  57.                             if( innerRule?.style && isWhite(innerRule.style?.backgroundColor)){
  58.                                 changeColor(innerRule.style);
  59.                             }
  60.                         }
  61.                     }
  62.  
  63.                 }
  64.             }
  65.             catch(e)
  66.             {
  67.                 console.log("White background replacer: Caught exception: ".concat(e));
  68.                 continue;
  69.             }
  70.         }
  71.     }
  72.  
  73. };
  74. checkPage() ;
  75.