The typical traditional goban is made up of 19x19 cells (where one can place stones). Most of these cells looks like this:
Except for the corners and edges, which look different, like this:
, 
, and their rotations.
The alternative visualization (as discussed in this thread) replaces these cells with identical cells that all look like this:
Note that there is a black border on that cell, which might be difficult to see with dark mode on these forums, so here is a version cropped slightly larger to show a single cell with parts of its neighboring cells:
Of course, some cells are also decorated with hoshi points.