Adjust the contrast
You can adjust the contrast of windows and buttons so that they’re easier to see. This is not the same as changing the brightness of the whole screen; only parts of the user interface will change.
開啟「概覽」並輸入「無障礙輔助」。
點擊「無障礙輔助」以開啟該面板。
Switch the High Contrast switch in the Seeing section to on.
快速開啟及關閉高反差
You can turn high contrast on and off by clicking the accessibility icon on the top bar and selecting High Contrast.