系统deepin20 qt5.10.1 creator 写了一个程序，在release模式下运行，用linuxdeployqt-continuous-x86_64.AppImage来打包发布,

echo "[Desktop Entry]
Type=Application
Name=My Qt App
Exec=untitled
Icon=untitled
Categories=Utility;
Comment=My Application

./linuxdeployqt-continuous-x86_64.AppImage \
    AppDir/usr/share/applications/untitled.desktop \
    -qmake=/home/chinatyq/Qt5.10.1/5.10.1/gcc_64/bin/qmake \
    -appimage

图标文件256x256的untitled.png,但打包后，my.AppImage却不显示untitled.png图标？如何做才能显示打包后的图标？谢谢