Hi there

I am having some issues with themes on the AppImage created using this plugin, on an Ubuntu 25.10. The fusion theme, that's used by default, doesn't look the same as the fusion theme when running natively on my host. The fields are short, the buttons are long.

This is native Fusion

This is the appimage Fusion

I've tried pretty much everything. This is what I install and copy over:

apt-get install -y -qq build-essential cmake extra-cmake-modules file wget fuse3 \
 qt6-base-dev qt6-declarative-dev qt6-tools-dev-tools qmake6 \
 libkirigami-dev libkf6coreaddons-dev libkf6i18n-dev libkf6qqc2desktopstyle-dev \
 qml6-module-org-kde-kirigami qml6-module-org-kde-desktop \
 qml6-module-org-kde-iconthemes qml6-module-org-kde-sonnet \
 qt6-wayland breeze libsdl2-dev

export QML_SOURCES_PATHS=/build/qml
export QML_MODULES_PATHS=/usr/lib/x86_64-linux-gnu/qt6/qml
export EXTRA_QT_MODULES='xcbintegration;waylandcompositor;svg;qml;platform'

I extracted the appimage, I can see all the QML plugins and files there. I consulted every AI under the sun, read every forum, nothing.

Can anyone help me sort this out?