Anyone who needs to distinguish 20 shades of green would develop the ability to do so. That's more culture or experience than language. Having names for them just means they have some need to communicate that information. You could do the same in English by drawing words or codes from color lists like websafe, Pantone, etc.
An example where language forces our thinking and even actions instead of simply allowing us to express it easily is plurals. Plurals force us to include unneeded number information in a lot of our thinking and talking. We have to have at least 2 cars to say "I have some cars" when showing off, otherwise admit that we only have one. You can see it in writing that uses "I" or "we" too. It reveals how many people it represents. A 2-person company can look much bigger than a 1-person company because it can use "we", "our", etc. just the same as a 1000000 person company does.
An example where language forces our thinking and even actions instead of simply allowing us to express it easily is plurals. Plurals force us to include unneeded number information in a lot of our thinking and talking. We have to have at least 2 cars to say "I have some cars" when showing off, otherwise admit that we only have one. You can see it in writing that uses "I" or "we" too. It reveals how many people it represents. A 2-person company can look much bigger than a 1-person company because it can use "we", "our", etc. just the same as a 1000000 person company does.