Well it's not rounding anything. At 100% zoom, sprite position was always whole number without decimals. Decimals showed up when zoom is bigger then 100%. Same with size, but it gets decimals all the time.
Oh, okay then, I didn't noticed it. This video was made before I read your post.
Maybe a little button to round the values can help Us a lot! ^^
I was having several problems with collisions because of very little misalignments.
Ashley , my bad, this was the zoom rounding the numbers ~_~
Maybe later, this can be added, because help a lot while doing collision masks for scenarios (I'm doing primitive forms, because one day you told me to use it, remember? scirra.com/forum/collision-polygons-and-detection-issues_topic54181.html