简单地模拟报纸阅读模式，将背景颜色改为更柔和的颜色。
// ==UserScript==
// @name 纸墨模式
// @name:zh-CN 纸墨模式
// @name:en NewsPaper Mode
// @version 0.1
// @description 简单地模拟报纸阅读模式，将背景颜色改为更柔和的颜色。
// @description:en Easy NewsPaper Mode, Reduce Background Color.
// @author RunningCheese
// @namespace https://www.runningcheese.com
// @license MIT
// @match *://*/*
// @icon data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAERlWElmTU0AKgAAAAgAAYdpAAQAAAABAAAAGgAAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAAAEKADAAQAAAABAAAAEAAAAAA0VXHyAAAAVUlEQVQ4EWNgoBAwIun/j8QmhgnWy4Ks8vXri8hcnGxRUX24HIoBIFFkSbgqKAObBRgGYFOEbhAyH8OAURcM1ljAF7UY0YhPMXL8w9gU5wWYQQNHAwA59SFyGEDyYwAAAABJRU5ErkJggg==
// ==/UserScript==
(function() {
function getRGBColor(node, prop) {
var rgb = getComputedStyle(node, null)
.getPropertyValue(prop);
var r, g, b;
if (/rgb\((\d+),\s(\d+),\s(\d+)\)/.exec(rgb)) {
r = parseInt(RegExp.$1, 10);
g = parseInt(RegExp.$2, 10);
b = parseInt(RegExp.$3, 10);
return [r / 255, g / 255, b / 255];
}
return rgb;
}
R(document.documentElement);
function R(n) {
var i, x, color;
if (n.nodeType == Node.ELEMENT_NODE && n.tagName.toLowerCase() != 'input' && n.tagName.toLowerCase() != 'select' && n.tagName.toLowerCase != 'textarea') {
for (i = 0; x = n.childNodes[i]; ++i) R(x);
color = getRGBColor(n, 'background-color');
if ((typeof(color) != 'string' && color[0] + color[1] + color[2] >= 2.8) || (n == document.documentElement && color == 'transparent')) {
n.style.backgroundColor = '#f5f5f5';
n.style.setProperty('background-color', '#f5f5f5', 'important');
}
}
}
})()