Let's exploit more of your Mac unbelievable power. Here it is,
⌘I (Get Info from icon). I have this file iPhone.jpg
Hey, Mac is really good at its color displaying. Why don't ya give it a look.
Such a nice view. Instead of this nice view, you also can search your file by its color label, sounds cool. It is not impossible, do not forget that you use Mac.
Even, you can hide extension of the file. Mean to make the thumbnail look simple and clean.
I think you will like that clean display.
Now, you can choose your default application to open this kind of file and you can change it for this file only or universally, it is up to you to decide. Very helpful.
See what inside your image file, without opening some image viewing applications. Cool.
The title already explain it clearly.
Some articles taken from our resource base, tightly related to current article, to empower you with more knowledge on tweaking the most out of your Mac.