Document icons not in line with Apple's HIG

Hi folks,
I've taken a look at the document icons inside Keka and I've noticed that they are not in line with [Apple's Human Interface Guidelines](https://developer.apple.com/design/human-interface-guidelines/macos/icons-and-images/document-icons/):

Left to right:
1. Original Apple .zip icon
2. Corrected Keka icon
3. Current Keka icon

As you can see from the example above, the Keka's icon is bigger, have a colored fold with non-rounded corners, and have a larger text than it should.

I can help you with that if you need a hand.