color setup after loading png file under windows 10 &paraview 5.8

Dear all
I just load an earth background .png file under paraview 5.8 , but the color seems abnormal, any suggestions or any configuration I missed ?

best regards

Turn off “Map Scalars” to show RGB values drawn directly.
Screen Shot 2020-03-01 at 10.42.59 AM

Thx, the png background display is ok now .