title: Google Maps API Marker Clusterer Change Level Size
body: <p>I'm trying to change level size of Google Maps API Marker Clusterer. 
  For default, the marker small size (blue icon/m1): 2-9 markers, medium level size (yellow icon/m2): 10-100 markers, big level (red icon/m3) size: 101-250 markers. (correct Me if I wrong). </p>
  
  <p>I want to change the value of level size smaller than default. I have found another thread with same topic but I still didn't get clearly point. </p>
  
  <p>This is the Google Maps API Marker Cluster icon I meant:</p>
  
  <p><a href="https://i.stack.imgur.com/8s5dH.jpg" rel="nofollow noreferrer">Google Maps API Marker Clusterer Icon</a></p>
  
  <p>PS: I didn't mention about how to change clusterer icon, I meant how to change value of size. Ex: How I can change the level size of marker so it will be clustered to blue (m1), yellow (m2), and red(m3)? The default size like I mentioned before, for m1 it's contain of 2-9 markers, can I change the size value to 2-5 markers only?</p>