The kde-neon extension

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A notable observation: the kde-frameworks-5-core18 snap ships the KDE Plasma platform theme. The developer may want to prevent loading said theme by setting QT_QPA_PLATFORMTHEME to something not kde for whatever reason, e.g. an incompatibility with the application.

However, the KDE Plasma platform theme will still be loaded if the snap’s being run in a KDE session. The env variables XDG_CURRENT_DESKTOP and KDE_FULL_SESSION affect whether this platform theme is loaded.

A possible solution is to incorporate a wrapper script that unsets said env vars:

if [ ! -z "$KDE_FULL_SESSION" ]; then
  unset KDE_FULL_SESSION
fi

if echo "$XDG_CURRENT_DESKTOP" | grep -q KDE; then
  unset XDG_CURRENT_DESKTOP
fi
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