make the Anonymous icon to be blank, plus some other renaming & task cleanup

src/components/EntityIcon.vue

@@ -5,13 +5,26 @@
 import { Vue, Component, Prop } from "vue-facing-decorator";
 import { toSvg } from "jdenticon";
 
+const BLANK_CONFIG = {
+  lightness: {
+    color: [1.0, 1.0],
+    grayscale: [1.0, 1.0],
+  },
+  saturation: {
+    color: 0.0,
+    grayscale: 0.0,
+  },
+  backColor: "#0000",
+};
+
 @Component
 export default class EntityIcon extends Vue {
   @Prop entityId = "";
   @Prop iconSize = 0;
 
   generateIdenticon() {
-    const svgString = toSvg(this.entityId, this.iconSize);
+    const config = this.entityId ? undefined : BLANK_CONFIG;
+    const svgString = toSvg(this.entityId, this.iconSize, config);
     return svgString;
   }
 }