No it is not. It has been on BS01 for over a decade. I see now it has been removed in January 2018 for some inexplicable reason.
This is what it was originally:
Kanohi are magnetically attached to their wearers. Kanohi of certain levels contain a power that the wearer can access, which is done through focus and concentration. If these powered Kanohi are cracked or broken, they do not function properly or at all. The masks come in a variety of different shapes, derived from the need to discern the power a mask has. While masks can be forged into any different shape, they are not done so in order to maintain consistency in identifying the power it might have. The colors of Great and Noble masks are dependent on their wearers. When Kanohi are made originally, they adopt a grayish color which they keep until they are worn. At that point the mask adopts a color with respect to the wearer. Matoran masks, having no power, will not change color at all, making it necessary to paint them in their colors.
‘Sigh’… yet another important piece of information lost from BS01