Icon credits:
    Icons made by Freepik from www.flaticon.com.
    Icons made by users of Freepik from www.flaticon.com.
    For details, see below:

    Save:
	https://www.flaticon.com/free-icon/loading_2413723?term=load&page=1&position=63
	<div>Icons made by <a href="https://www.flaticon.com/authors/iconixar" title="iconixar">iconixar</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a></div>

    Design:
	https://www.flaticon.com/packs/robotics-engineering-2
	Icons made by <a href="https://www.flaticon.com/authors/eucalyp" title="Eucalyp">Eucalyp</a> from <a href="https://www.flaticon.com/" title="Flaticon"> www.flaticon.com</a>

    Maintenence, Protoboard, Chip, Binary Code:
	https://www.flaticon.com/free-icon/protoboard_1118341
	https://www.flaticon.com/free-icon/chip_1118338
	https://www.flaticon.com/free-icon/binary-code_1118326
	Icons made by <a href="https://www.flaticon.com/authors/eucalyp" title="Eucalyp">Eucalyp</a> from <a href="https://www.flaticon.com/" title="Flaticon"> www.flaticon.com</a>

   Pencil, Sheet, lightbulb, eraser
	https://www.flaticon.com/packs/graphic-design-tools-14
	https://www.flaticon.com/free-icon/pencil_1639307
	https://www.flaticon.com/free-icon/paper-sheet_1639290
	https://www.flaticon.com/free-icon/lightbulb_1639263
	https://www.flaticon.com/free-icon/eraser_1639236
	Icons made by <a href="https://www.flaticon.com/authors/eucalyp" title="Eucalyp">Eucalyp</a> from <a href="https://www.flaticon.com/" title="Flaticon"> www.flaticon.com</a>

   Delete: data managment 
	https://www.flaticon.com/packs/data-management-4
	https://www.flaticon.com/free-icon/delete_1935869
	Icons made by <a href="https://www.flaticon.com/authors/eucalyp" title="Eucalyp">Eucalyp</a> from <a href="https://www.flaticon.com/" title="Flaticon"> www.flaticon.com</a>

   Draw easel
	https://www.flaticon.com/free-icon/drawing_1649174?term=draw&page=1&position=6
	Icons made by <a href="https://www.flaticon.com/authors/eucalyp" title="Eucalyp">Eucalyp</a> from <a href="https://www.flaticon.com/" title="Flaticon"> www.flaticon.com</a>

   Zoom, Pan, Point (signal), Painting, Crayon
	https://www.flaticon.com/free-icon/pan_1639277?term=pan&page=1&position=8
	https://www.flaticon.com/free-icon/pan_1639277?term=pan&page=1&position=8
	https://www.flaticon.com/free-icon/painting_1285788?term=zoom&page=1&position=14
	https://www.flaticon.com/free-icon/crayon_1645965?term=draw&page=1&position=10
	Icons made by <a href="https://www.flaticon.com/authors/eucalyp" title="Eucalyp">Eucalyp</a> from <a href="https://www.flaticon.com/" title="Flaticon"> www.flaticon.com</a>

   Connectors 
	https://www.flaticon.com/free-icon/plug_1552808
	
   Screenshot
	https://www.flaticon.com/free-icon/browser_1829550?term=screenshot&page=1&position=15

   Force refresh 
	https://www.flaticon.com/free-icon/redo_1783378?term=redo&page=1&position=28
	
   Rebuild 
	https://www.flaticon.com/free-icon/house-repair_1278495

   Icons/failed
	https://www.flaticon.com/free-icon/warning_595067