<div>The problem seems to be, that the only place <span class="nf" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;font:inherit;color:rgb(153,0,0);font-weight:bold;font-family:'Bitstream Vera Sans Mono',Courier,monospace;line-height:11px;white-space:pre;background-color:rgb(255,255,255)">draw-turtle-icons</span><span class="nf" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;border-style:initial;border-color:initial;font:inherit;font-weight:bold;font-family:'Bitstream Vera Sans Mono',Courier,monospace;line-height:11px;white-space:pre;background-color:rgb(255,255,255)"><font color="#333333"> </font></span></div> <div>is called is in on-paint. This event is only called when</div><div><span style="font-family:serif;text-align:left;background-color:rgb(255,255,255);font-size:medium;font-style:italic"><br></span></div><div><span style="font-family:serif;text-align:left;background-color:rgb(255,255,255);font-size:medium;font-style:italic">> Specification:</span><span style="font-family:serif;text-align:left;background-color:rgb(255,255,255);font-size:medium"> Called when the canvas is exposed or </span></div> <div><span style="font-family:serif;text-align:left;background-color:rgb(255,255,255);font-size:medium">> resized so that the image in the canvas can be repainted.</span></div><div><br></div><div>And indeed if one issues commands in the repl and then resizes the </div> <div>window, the orange triangle is updated.</div><div><br></div>-- <br>Jens Axel Søgaard<br><br><br>