brainreg_outputin the same directory as the
psl, which means that the data origin is the most posterior, superior, left voxel. For more details see Image definition
brainglobe list. In this case, we want to use a mouse atlas (as that's what our data is), and we'll use the 50um version of the Allen Mouse Brain Atlas.
naparifrom the same terminal/command as you ran brainreg (or open a new one and activate your conda environment). You can then drag and drop the
brainreg_outputdirectory into napari, and see the results.