I noticed that some hearts I've earned are pale and the others are more red. Does anyone know if there is a difference between them? Are they earned under different conditions?

I'm totally stuck on level Winter/Fish (i.e. 8th puzzle along on the 'main line' in the 4th main area) Tried everything I can think of - spent WAY too long on this , and am ragequit annoyance level now!!! Since the game is structured so that you have to solve previous to be able to move on - I'm stuck. At about 35% played in the game. This is so disappointing - rest of game - and my money - wasted Could devs. PLEASE add a Skip level. Or somebody cleverer than me post a Guide? ...

Got here from the Cerebral Puzzle Showcase page as it listed this as one of the "try before you buy" games with a demo available, but I don't seem to be able to find it?

I've been having fun with the demo - up until the intro of the red single pointed "things". I don't understand what they do or what the purpose is. So far, I can see that if they collide with other "baddies", like the orange two-pointed ones, the orange one "dies" and is replaced with another red. But two reds can't "kill" each other. Or - well they can if there's 3, reducing to 2, but the last two will colliding make the square go red, but then immediately respawn into 2 reds again. And how does moving...

Anyone know where the save file is located? I started playing on one computer but when I then tried to continue on another my progress didn't carry over. It doesn't look like cloud saving through Steam is enabled for this game. I'd like to copy the save file from one computer to another....