I made an All Pen more than 20 years ago and stayed black from that time.
I did not do anything as long as I could find a Parenthesis nice sticker, but after all I did not find anything that chic revealed and tried to purchase it this time.
While attaching a neutral detergent, it was easy to paste, but since the Masking tape on the surface is strong, it was necessary to be careful not to stretch the sticker when peeling off. It is ok if you put detergent on Masking side and slowly peel it off.
Again this place, this Logo - Gold color is the best. I should have pasted it sooner.