The first beta of Color Assembler is now released! You can find it in the 'downloads' section.
Currently, there's no sound or music and the game only has 23 levels (and ends abruptly after the 23rd level). Other than that, it should be working correctly.
You can write your feedback either here in the comments or send it to akheraCZ@gmail.com. I'm mostly concerned about how comprehensive the tutorial is, the difficulty of the levels and, of course, how much you enjoyed the game. All feedback is appreciated!