Apt Update Indicator
Update indicator for apt-based distributions.
pkcon refresh
by defaultapt upgrade -y
by default to upgradehttps://extensions.gnome.org/extension/1139/apt-update-indicator/
To install, simply download and execute make install
Forked from https://github.com/RaphaelRochet/arch-update !
Thanks @lucatrv for all your input!