Yarn queue manager color meaning

[#1]

In the Yarn Queue Manager UI view below, there is 3 levels: root parent and child

the color between root and parent is green but the color between child and parent is orange,

What those colors mean?

[#2 · Accepted solution]

@hisi Here is the details.  

Orange link: When queue usedCapacity > 90%
Queue with red border: When queue usedCapacity > 95% threshold.