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>