ATLauncher pack icons are crushed when running

[r58Playz]

Operating System

macOS

Description of bug

Modpack icons are crushed when shown in the dock on MacOS. Maybe it occurs on Windows and Linux too.

Curseforge instance icon when running:

ATLauncher instance icon when running:

Steps to reproduce

Download an ATLauncher modpack and run it.

Suspected cause

No response

This issue is unique

• I have searched the issue tracker and did not find an issue describing my bug.

[ImperatorStorm]

Can't reproduce on linux using KDE Plasma DE. For whatever reason, custom pack icon isn't used at all:

This is despite using the same pack as @r58Playz

[jamierocks]

Yeah this is an unfortunate consequence of ATLauncher using rectangular pack icons.

I guess the logos could be set onto a square background, to prevent them being stretched in cases like this - though that would look equally bad imo, if not worse.