For informational purposes, here is a quick theme I put together using the Orbiter font (font by Damien Guard):

To use this code snippet, you must first import the Orbiter font using the guide shown here, then copy and past this snippet. The start_theme must replace the existing start_theme line.

start_theme = rounded_orbit
themes {
   rounded_orbit : theme {
      extends = two
      theme_settings {
         font           = userfont_orbiter
         capitalization = original
         layout         = SB O X 
         columns        = 48
         shader         = none
      }
      system_messages {
         object_list_header       = "Here: "
         exit_list_header_concise = "Can Go: "
      }
      screen {
         experimental_paper_section_corner_rounding = 5
         status_bar_padding_top                     = 4
         status_bar_padding_bottom                  = 3
      }
      colors {
         story_pen                   = #fff
         border                      = #026
         paper                       = #000
         status_bar_paper            = #933
      }
   }
}
assets {
   fonts {
      // Import the orbiter font here first before pasting the theme ....
   }
}