i could not get yellow diamond, not intuitive, also the control needs some work, like you need to click on platform to activate it and then you can move, this is not fun and you loose time. Better to be mouse over and then you click and can drag the platform or mouse off the platform to scroll the whole screen.
Also the platform rotation is not intuitive, you need to click the icon to use it but you dont get any feedback wethere youre in rotate mode or not. Better to have some margin border that is invisible to player yet visible to mouse over so that its more like in gimp, where you can rotate by grabbing the outter edge
