You can change the color of your main timeline line, nods (dots with the date), arrows that control the line and nod description (text that appears when you hover over the nod)

Every element in the line can have its color changed. This way you can customize your timeline even more.

Example of blue nods and nod description with gray line and controls

You can use a color picker or input your own hex value for these colors.

Select the colors that you want for your line and nods