What's the best way of replacing a material in your scene with another one?
At first I thought I could simply
bpy.data.materials['old_mat_name'] = new_mat, but that reference is read only so it throws an error.
Do I really have to comb through every object in my scene for material slots named
old_mat_name and replace them with the new one?
Is there a better way of getting one material to match another exactly?