Product color from select list in Commerce Kickstart 2 I thought it would be simple, but either I'm stupid or the commerce kickstart 2 doesn't have such functionality.

I've created a t-shirt product variation and I want to give my customers the possibility of choosing their favorite color from a color picker or from a select list. The color doesn’t affect the price.

As I see the only option for doing this in kickstart commerce is by creating each variation per color.
Is there any other way to accomplish this? I just want to create t-shirt and let people choose their color.

Please help me I'm getting very frustrated.
That's exactly what variations are for...

You have a product (a t-shirt) with a variety of different options (colours), hence you need different variations of the product to identify what colour of t-shirt has actually been sold.

Kickstart already has that exact functionality built right in; if you install the demo content and browse to "/tops/guy-short-sleeve-tee" you should see it: