documentclass[border=10pt,multi,tikz]{standalone}
usepackage[edges]{forest}
definecolor{folderbg}{RGB}{124,166,198}
definecolor{folderborder}{RGB}{110,144,169}
newlengthSize
setlengthSize{4pt}
tikzset{%
  folder/.pic={%
    filldraw [draw=folderborder, top color=folderbg!50, bottom color=folderbg] (-1.05*Size,0.2Size+5pt) rectangle ++(.75*Size,-0.2Size-5pt);
    filldraw [draw=folderborder, top color=folderbg!50, bottom color=folderbg] (-1.15*Size,-Size) rectangle (1.15*Size,Size);
  },
  file/.pic={%
    filldraw [draw=folderborder, top color=folderbg!5, bottom color=folderbg!10] (-Size,.4*Size+5pt) coordinate (a) |- (Size,-1.2*Size) coordinate (b) -- ++(0,1.6*Size) coordinate (c) -- ++(-5pt,5pt) coordinate (d) -- cycle (d) |- (c) ;
  },
}
forestset{%
  declare autowrapped toks={pic me}{},
  pic dir tree/.style={%
    for tree={%
      folder,
      font=ttfamily,
      grow'=0,
    },
    before typesetting nodes={%
      for tree={%
        edge label+/.option={pic me},
      },
    },
  },
  pic me set/.code n args=2{%
    forestset{%
      #1/.style={%
        inner xsep=2Size,
        pic me={pic {#2}},
      }
    }
  },
  pic me set={directory}{folder},
  pic me set={file}{file},
}
begin{document}

begin{forest}
  pic dir tree,
  where level=0{}{% folder icons by default; override using file for file icons
    directory,
  },
  [system
    [config
    ]
    [lib
      [Access
      ]
      [Plugin
      ]
      [file.txt, file
      ]
    ]
    [templates
    ]
    [tests
    ]
  ]
end{forest}
end{document}