How can I control the colors of the store template?

Through going from the control panel to design then customize template and then click on format icon at top then click on colors and choose the fit color for your store
The following images are for clarification :

for more info please check the next links for How to customize your online store template 

https://youtu.be/e2XbeAq2xJg

https://youtu.be/qFFT-AZMMWQ

https://youtu.be/bynkPEUAoK4