Change colors in Windows - Microsoft Support

You canpersonalize the color or accent color forwindow title bars and borders, the Start button, orthe taskbar. The Dark mode hascolors that are designed to work well in a low-lit environment. This option is forthe Start menu, taskbar, and action center. The Light modeis designed to workwell during daylight hours. If you choose this option,you’ll be able to show an accent color for window title bars and borders. Note:The Light modedoesn't personalize the color of the Start menu, taskbar, and action center (that option is only available for Dark and Custom modes). The Custom mode gives you optionsbetween Light and Dark. You can choose an accent color, or have Windows select one (the accent color will provide a contrast with, or match, your wallpaper and Windows color). This option is forthe Start menu, taskbar, and action center.You can also show an accent color for window title bars (the horizontal bar at the top of a window) and borders. You can play around with the colors and modes t...