1.0gCADPlushttps://www.gcadplus.com/wpKeithhttps://www.gcadplus.com/wp/author/kwestdesigncad-com-au/rich600338<blockquote class="wp-embedded-content" data-secret="DJlcidd6zC"><a href="https://www.gcadplus.com/wp/customizing-symbols/">Customizing Symbols</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.gcadplus.com/wp/customizing-symbols/embed/#?secret=DJlcidd6zC" width="600" height="338" title="“Customizing Symbols” — gCADPlus" data-secret="DJlcidd6zC" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.gcadplus.com/wp/wp-includes/js/wp-embed.min.js </script>   We take an existing symbol from the gCADPlus library and edit it to more accurately reflect the characteristics of the species. Determining colors to be used in the symbol using IrfanView was particularly helpful.https://www.designcad.com.au/wp/wp-content/uploads/2018/06/YouTubeLogo.gif