How to color (a different color) duplicated items in blender 2.91? I know in the previous versions we there is a number 2 (at the red arrow shown in the picture) so that we can color the duplicated object another color. But how to do it in blender 2.91? I tried pressing the button shown in the picture but the duplicated object's color is still linked to the original object.
You need to link the Materials to Object, so they're no longer synced.
Mesh Data are synced, so any change affects all of them.
It's the Object/Data switch in Material tab.