一个可以改变文字颜色和背景的调色程序。可以通过拖动。来分别改变红 绿蓝三色来调和颜色，包括背景亚呢和文字颜色-One can change the text color and background color process. By dragging. To change the red, green and blue, respectively, to reconcile the colors, including background and text color sub it