Prior to Catalina, I had a desktop Icon for Trash provided by a 32 Bit app which no longer works.

I've been looking to create a new Desktop Trash (or Bin as it now seems to be called) and have managed so to do (via link below) but I cannot change the icon in Get Info. The "new" Bin works as expected (although it lacks some minor Trash facilities such as eject CD/DVD) but I would prefer it to look like a Bin rather than a Folder. I have downloaded the icon to which the article links but it won't copy and paste into Get Info.

Does anyone have any suggestions on what i am doing wrong?

https://www.maketecheasier.com/add-trash-icon-desktop-mac/


iMac (Retina 5K, 27-inch, 2017); 3.8 GHz Intel Core i5; 2TB HD; 64 GB 2400 MHz DDR4 RAM; Radeon Pro 580 8 GB. iPad Pro 10.5" Model MPME2B/A with 512GB capacity; iPhone SE 2020 256GB