FEATURE displaying data tree
diff --git a/frontend-assets/icons/tree_branch.svg b/frontend-assets/icons/tree_branch.svg
new file mode 100644
index 0000000..f45dea6
--- /dev/null
+++ b/frontend-assets/icons/tree_branch.svg
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   id="svg2"
+   inkscape:version="0.91+devel r14491"
+   width="32"
+   height="32"
+   viewBox="0 0 32 32"
+   sodipodi:docname="tree_branch.svg">
+  <metadata
+     id="metadata8">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs6" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1764"
+     inkscape:window-height="1171"
+     inkscape:document-units="px"
+     id="namedview4"
+     showgrid="true"
+     width="32"
+     inkscape:zoom="20.85965"
+     inkscape:cx="4.734334"
+     inkscape:cy="10.548157"
+     inkscape:window-x="1920"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg2">
+    <inkscape:grid
+       type="xygrid"
+       id="grid29" />
+  </sodipodi:namedview>
+  <rect
+     style="fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.02;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+     id="rect221"
+     width="32"
+     height="32"
+     x="0"
+     y="0" />
+  <path
+     style="fill:none;fill-rule:evenodd;stroke:#d2d2d2;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+     d="M 13,0 V 32.071488"
+     id="path219"
+     inkscape:connector-curvature="0"
+     sodipodi:nodetypes="cc" />
+  <path
+     style="fill:none;fill-rule:evenodd;stroke:#d2d2d2;stroke-width:2;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+     d="M 13,16 H 32.035744"
+     id="path219-3"
+     inkscape:connector-curvature="0"
+     sodipodi:nodetypes="cc" />
+</svg>