create alias gray_border -> grey_border
Common spelling variation: gray/grey.
Consistent with these aliases that already exist:
- gray_background -> grey_background
- gray_bikini -> grey_bikini
- gray_eyes -> grey_eyes
- gray_hair -> grey_hair
- gray_legwear -> grey_legwear
- grayscale -> greyscale
- etc.
EDIT: The tag alias gray_border -> grey_border (forum #143189) has been approved by @Hillside_Moose.
Updated by a moderator