I am trying to have my post thumbnails have a "sash/banner" that diagonally covers their top-left corner. The "sashes" would say New/To Let/Let. These "sash" images would need to be updated from New>>To Let>>Let as and when needed.
To accomplish this I presume I will need two thumbnails, a main thumbnail that would be a jpg and the "sash" that would be a transparent png.
Has anyone tried this before, do you have any pointers?
Any help would be greatly appreciated.