Platinum's Mix Free series of inks is designed to allow the ink mixer in you to mix inks without any fear of strange and unwanted reactions between the inks and your pen. However if you are only interest in using the ink as it is, that's totally fine too. Leaf Green is on the lighter shade of green. The colour is vibrant but not to the point of popping off the page. It has no shading. Dry time is quite decent on good paper and it is even better on the Muji notebook's paper.