Here's one option using the powerful forest
package; since its built upon TikZ the customization possibilities are enormous.
For example one can easily simulate the style produced by dirtree
:
\documentclass[border=5pt]{standalone}
\usepackage{forest}
\begin{document}
\begin{forest}
for tree={
font=\ttfamily,
grow'=0,
child anchor=west,
parent anchor=south,
anchor=west,
calign=first,
edge path={
\noexpand\path [draw, \forestoption{edge}]
(!u.south west) +(7.5pt,0) |- node[fill,inner sep=1.25pt] {} (.child anchor)\forestoption{edge label};
},
before typesetting nodes={
if n=1
{insert before={[,phantom]}}
{}
},
fit=band,
before computing xy={l=15pt},
}
[text1
[text1.1
[text1.1.1]
[text1.1.2]
[text1.1.3]
]
[text1.2
[text1.2.1]
[text1.2.2]
]
]
\end{forest}
\end{document}

And a simple modification to the previous specifications
for tree={
font=\sffamily,
text=white,
text width=2cm,
minimum height=0.75cm,
if level=0
{fill=mygreenii}
{fill=mygreeni},
rounded corners=4pt,
grow'=0,
child anchor=west,
parent anchor=south,
anchor=west,
calign=first,
edge={mygreenii,rounded corners,line width=1pt},
edge path={
\noexpand\path [draw, \forestoption{edge}]
(!u.south west) +(7.5pt,0) |- (.child anchor)\forestoption{edge label};
},
before typesetting nodes={
if n=1
{insert before={[,phantom]}}
{}
},
fit=band,
s sep=15pt,
before computing xy={l=15pt},
}
now gives:

The initial theme can also be easily changed to
\documentclass[border=5pt]{standalone}
\usepackage{forest}
\definecolor{folderbg}{RGB}{124,166,198}
\definecolor{folderborder}{RGB}{110,144,169}
\def\Size{4pt}
\tikzset{
folder/.pic={
\filldraw[draw=folderborder,top color=folderbg!50,bottom color=folderbg]
(-1.05*\Size,0.2\Size+5pt) rectangle ++(.75*\Size,-0.2\Size-5pt);
\filldraw[draw=folderborder,top color=folderbg!50,bottom color=folderbg]
(-1.15*\Size,-\Size) rectangle (1.15*\Size,\Size);
}
}
\begin{document}
\begin{forest}
for tree={
font=\ttfamily,
grow'=0,
child anchor=west,
parent anchor=south,
anchor=west,
calign=first,
inner xsep=7pt,
edge path={
\noexpand\path [draw, \forestoption{edge}]
(!u.south west) +(7.5pt,0) |- (.child anchor) pic {folder} \forestoption{edge label};
},
before typesetting nodes={
if n=1
{insert before={[,phantom]}}
{}
},
fit=band,
before computing xy={l=15pt},
}
[system
[config
]
[lib
[Access
]
[Plugin
]
]
[templates
]
[tests
]
]
\end{forest}
\end{document}
which produced

And combining these settings with a variation of my answer
to Draw directory tree using folder icons one can produce
\documentclass[border=10pt]{standalone}
\usepackage{forest}
\definecolor{fblue}{RGB}{92,144,192}
\definecolor{fgreen}{RGB}{34,162,70}
\newcommand\myfolder[2][fblue]{%
\begin{tikzpicture}[overlay]
\begin{scope}[xshift=20pt]
\filldraw[rounded corners=1pt,fill=#1,draw=white,double=black]
(-23pt,10pt) -- ++(3pt,5pt) -- ++(18pt,0pt) -- ++(40:3pt) -- ++(9pt,0pt) -- ++(-40:3pt)
-- (20pt,15pt) -- (23pt,10pt) -- cycle;
\filldraw[rounded corners,draw=white,double=black,top color=#1,bottom color=#1!30]
(-22pt,-12pt) -- ++(44pt,0pt) -- (25pt,12pt) coordinate (topr) -- ++(-50pt,0pt) coordinate (topl) -- cycle;
\end{scope}
\end{tikzpicture}%
\makebox[35pt]{\raisebox{-3pt}{{\ttfamily/#2}}}%
}
\begin{document}
\begin{forest}
for tree={
font=\sffamily,
minimum height=0.75cm,
rounded corners=4pt,
grow'=0,
inner ysep=8pt,
child anchor=west,
parent anchor=south,
anchor=west,
calign=first,
edge={rounded corners},
edge path={
\noexpand\path [draw, \forestoption{edge}]
(!u.south west) +(12.5pt,0) |- (.child anchor)\forestoption{edge label};
},
before typesetting nodes={
if n=1
{insert before={[,phantom,minimum height=18pt]}}
{}
},
fit=band,
s sep=12pt,
before computing xy={l=25pt},
}
[\myfolder{}
[\myfolder{bin}]
[\myfolder{dev}]
[{\myfolder[fgreen]{home}}
[{\myfolder[fgreen]{anna}}]
[{\myfolder[fgreen]{tess}}]
]
[\myfolder{media}]
[\myfolder{mnt}]
[\myfolder{usr}]
]
\end{forest}
\end{document}

What should be noticed here is that once the basic specification for the vertical structure has been established (which I borrowed with some modifications from cfr (See, for example her answer
to how to adjust large number of nodes in forest environment?)):
for tree={
grow'=0,
child anchor=west,
parent anchor=south,
anchor=west,
calign=first,
edge path={
\noexpand\path [draw, \forestoption{edge}]
(!u.south west) +(7.5pt,0) |- node[fill,inner sep=1.25pt] {} (.child anchor)\forestoption{edge label};
},
before typesetting nodes={
if n=1
{insert before={[,phantom]}}
{}
},
fit=band,
before computing xy={l=15pt},
}
all one has to do is to let the imagination fly and produce as many variations as desired using the power of forest
/TikZ.