This is supposed to be a progress bar that shows the evolution, as the triangle is moving from yellow to green. Is there a name for such a bar, cause im trying to find similar ones, but i dont know how they are called so i can search the web effectively 
![Screen Shot 2019-01-30 at 7.59.00 PM.png]( "Screen Shot 2019-01-30 at 7.59.00 PM.png")
