Make the color and timer configurable

[dnafication]

Allow users to update the colors, add more stages of timer.

[mahmoud-the-dev]

I would like to address this issue, could you assign it to me
I think it will be great if we add a theme customization button right behind the timer settings button. what do you think?

[dnafication]

Sure! feel free to come up with the implementation. Good thing is this is very simple project and you can experiment with the aesthetics to see what is good for the UX. Send me pull request and we can work together.

[mahmoud-the-dev]

Sure, I will get right on it.