is it possible to style the bookmarklet browser bookmarked icon and text ?

hi there, is this possible please ? and how would i do it if so.

i can't seem to get a screenshot of my browser bookmark but it's a plain folder icon with top right corner folded over, and it says 'bookmarklet'


It would be nice to have my sites favicon and my sites name 


i'm guessing i can style it here where the file is bookmarks/bookmarklet/36


thank you