We have upgraded from 7.3 to 8.5, I see a shadow border displaying at the bottom right in Pega 8.5 for the buttons only.
I have tried with changing borders and background in skin rule. If we remove CSS support for the button then this is not coming but it will disturb all buttons in application. tried with modifying style sheets(CSS) and added "" box-shadow: none; "" at button scripts but no use, I haven't found anything on this.
Attached screenshot for reference.
***Edited by Moderator: Pooja Gadige to add platform capability tags***