In the list for Choose your default app mode, select Light or Dark. In the list for Choose your default Windows mode, select Light or Dark. In the list for Choose your mode, select Custom. Scroll down and select the toggle for Show accent color on Start and taskbar and Show accent colors on tile bars and windows borders to turn them on or off, as desired.

To manually select an accent color, select Manual, then select the list to the right and select a color under Recent colors or Windows colors, or select View colors (next to Custom colors) for an even more detailed option. In the list for Choose your mode, select Dark. To manually select an accent color, select one under Recent colors or Windows colors, or select View colors (next to Custom colors) for an even more detailed option. To have Windows automatically pick an accent color, select Automatic. In the list for Choose your mode, select Light. You can play around with the colors and modes to see which ones work best for you. This option is for the 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 choose an accent color, or have Windows select one (the accent color will provide a contrast with, or match, your wallpaper and Windows color). The Custom mode gives you options between Light and Dark.

Note: The Light mode doesn't personalize the color of the Start menu, taskbar, and action center (that option is only available for Dark and Custom modes).

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