Yes, I can't read this either. Also, consider using a sequential color scale, rather than diverging. A diverging color scale should be reserved for datasets with a neutral value or natural midpoint. For example, if you were displaying growth, zero would be the midpoint, to quickly differentiate between positive/negative growth.
There is no meaningful midpoint here. A sequential scale from light to dark would be easier to read.
Yes, as a red/green color blind person this is mostly useless to me because the scale goes from red/green, through greenish yellow, back to red/green. Expensive and cheap look the same.
There is no meaningful midpoint here. A sequential scale from light to dark would be easier to read.