the text in the top right of the screen is very handy, however it becomes incredibly hard to see when any light colored particle is underneath it.
I suggest that the cursor statistics be moved to the bottom of the screen, left from where the element lists are shown. As that section does not display particles, it would always be visible.
Simple way to make the text visible all the time, draw the text one pixel to the left, then up, then right then down in black and draw it in the middle in white, it creates a black border so you can see the text no matter what's behind it.