Ward Indicators Clarity

So Riot recently added small indicators above wards so you could tell which is which. Problem is, the indicators for and look exactly the same to me. One is green, and one is yellow, so they look exactly the same to me at a glance, especially because they are both circles. Sure one may have an extra ring around it but how could I notice that with the half a second I have to see it?

My suggestion for the small ward indicators is to change the shape of them instead of simply adding a ring around it. Make them a triangle or a diamond and I would be able to tell the difference.