My game project is really pushing the limits of people on the screen - there's gonna be at least 400 pedestrians in a layout at once. So too little visual difference makes it hard to make a good feeling of a city.
I made a small system called "P.R.E" to randomize headwear for each civilian and that made it a little more bearable to watch crowds of people. I toyed with color filters but didn't achieve anything but red lava people.
Then I realized what Construct really would need: color replacing!
You can already crop out colors in corners of a sprite, why not replace one color with another?
I could put specific colored areas to my little townsmen and then randomize the color on their chest to create different colored shirts and pants for every single citizen in my game!
So please, to make my game wonderfully crowded I need a Replace Color action to the Sprite object.
P.S, here's how the citizens are doing now: naked, without clothes and only headwear on
<img src="http://www.cubeupload.com/files/2ebe00thepeoplestormint.png">