Emacs desktop file doesn't use a hi-res icon and hence the icon is pixelated in hi-res displays

[Guruprasad]

On my Dell Precision 5530 laptop with a 4K display and 200% scaling in KDE Plasma, the icon used by the emacs desktop file looks pixelated because it is not a high-res version. I am using the 'Large icons' version of the alt-tab switcher in Plasma.

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: emacs-gtk 1:27.1+1-3ubuntu3
ProcVersionSignature: Ubuntu 5.13.0-22.22-generic 5.13.19
Uname: Linux 5.13.0-22-generic x86_64
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Wed Dec 15 15:23:58 2021
InstallationDate: Installed on 2021-12-02 (13 days ago)
InstallationMedia: Kubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
SourcePackage: emacs
UpgradeStatus: No upgrade log present (probably fresh install)