Flatseal is a graphical utility to review and modify basic permissions from your Flatpak applications.
Simply launch Flatseal and modify your applications permissions. If anything goes wrong just press the reset button.
$ git clone https://github.com/tchx84/Flatseal.git
$ cd Flatseal
$ flatpak-builder --force-clean --repo=repo build com.github.tchx84.Flatseal.json
$ flatpak build-bundle repo flatseal.flatpak com.github.tchx84.Flatseal
$ flatpak install flatseal.flatpak
NOTE: Or just build it with Builder
If you are interested in contributing to this utility just send a pull request to this repo.