What is the meaning of HIGH CORRELATION in pandas profiling?

I'm trying to use pandas profiling on titanic dateset. Under the overview section there are some features with caption "HIGH CORRELATION"

• I know what is the meaning of correlation, but the caption doesn't tell which feature is correlated to this feature ?
• So what is the meaning of "HIGH CORRELATION" in the pandas profiling doc ?

If you click on the Warnings tab it will tell what other feature the features are correlated with as seen in this example. Can see the same thing in the example with the actual titanic data.