Other systems
The same publication, read through different software. Each theme reproduces the default screens and menu workflow of one package from its original distribution files; the credits name the authors and artists.
RetroMake's own board, written in the idiom of the Commodore 64 bulletin boards of 1985 to 1992. Blue screen, light-blue border, PETSCII block art, one key per command. It is the default because the C64 was the machine most people first called a board from.
The Commodore 128 shipped with a second video chip that drew 80 columns of text. Pressing the 40/80 DISPLAY key on a real machine is what the 80-column command does here: the same board, twice the width.