Colludium , ryanrybot I'm afraid you're both missing the point.
The first one that I tried which was .png to begin with droped over 500kb in size after compressing it with tinypng, putting it in the project and saving the project(not exporting).
The tinypng compressing on the png file helped reduce the size after C2 was done with it and there was absolutely no loss of quality(to the naked eye at least)!
So the point is that after all that I can export it normally(as png-32), get a reduced file size, AND the entire process will be loseless!
If I try it your way, to not care about the size before exporting, and then exporting as png-8 I can clearly see a drop in image quality.....
So, is there any way to make that process work with jpg files too so I can keep the loseless process going?
P.S. To whom it may concern: If it's too late for C2, then I at least really hope we see in C3 a nice and easy way of using the expansion files that google now provides....