Hello, I am sure this question is asked often, but I could not find a solution that solved my issues even with similar contexts. I am using a python script to prepare my .defattr files (.defattr file uploaded below). I have nan values that I would like to set as lightgray using ‘noValueColor light gray’ but to no avail. All nan values are locked in a dark gray/black color. I saw that there was a ‘finite range’ error with numpy, that might be occurring due to my first and last values being ‘nan’, but I still have the nan coloring issue when I manually assign my first and last values as 0.0. Other failed attempts to resolve this issue were: - setting my noValueColor to target residues ‘target r noValueColor light gray’ - setting all ‘nan’ values to blanks - manually rendering ’noValue’ to a specific color by Tool > StructureAnalysis > Render/ByAttribute. (The color in box is correct, but it does not render to the correct color. Thank you! Jaewon