Reviews complain colors are not the same as shown. Have you fixed this problem?

The last bullet-point states "Photo is an example of an assortment you may receive. Assortment may include colors and patterns not show. Colors and patterns may vary." I'm guessing no one is truly reading the item description for everyone to be complaining it's wrong. So there is no problem to be fixed. If ya want specific colors try ordering direct from manufacturer, or try finding in stores.

Will these underwear shrink alot?

No this material definitely does not shrink

Can I get these in darker colors?

I ordered the light colors but go the dark, so I guess the answer is yes

When I ordered these the neutral colors were not shipped. Where is the option to select the colors pictured?

There is no option. The last bullet-point states "Photo is an example of an assortment you may receive. Assortment may include colors and patterns not show. Colors and patterns may vary."