input: [SC_MARKNUM_*] FOLDERSUB [Arrow] EMPTY [Plus/minus] EMPTY [Box tree] VLINE [Circle tree] 
output: VLINE
options: C I R C L E M I N U S
options: C I R C L E P L U S
options: V L I N E
options: L C O R N E R C U R V E
options: C I R C L E P L U S C O N N E C T E D
options: C I R C L E M I N U S C O N N E C T E D
options: T C O R N E R C U R V E