--- a/light9/live/Effect.ts	Mon May 29 11:41:11 2023 -0700
+++ b/light9/live/Effect.ts	Mon May 29 11:44:22 2023 -0700
@@ -145,7 +145,7 @@
     return value != null && value !== 0 && value !== "#000000";
   }
 
-  _addEffectSetting(device: NamedNode, deviceAttr: NamedNode, value: ControlValue): Patch {
+  private addEffectSetting(device: NamedNode, deviceAttr: NamedNode, value: ControlValue): Patch {
     log("  _addEffectSetting", deviceAttr.value, value);
     const U = (x: string) => this.graph.Uri(x);
     const quad = (s: Quad_Subject, p: Quad_Predicate, o: Quad_Object) => this.graph.Quad(s, p, o, this.ctxForEffect);
@@ -171,12 +171,12 @@
     return this.graph.getObjectPatch(
       effectSetting, //
       valuePred(this.graph, deviceAttr),
-      this._nodeForValue(value),
+      this.nodeForValue(value),
       this.ctxForEffect
     );
   }
 
-  _removeEffectSetting(effectSetting: NamedNode): Patch {
+  private removeEffectSetting(effectSetting: NamedNode): Patch {
     const U = (x: string) => this.graph.Uri(x);
     log("  _removeEffectSetting", effectSetting.value);
     const toDel = [this.graph.Quad(this.uri, U(":setting"), effectSetting, this.ctxForEffect)];
@@ -186,7 +186,7 @@
     return new Patch(toDel, []);
   }
 
-  _nodeForValue(value: ControlValue): NamedNode | Literal {
+  private nodeForValue(value: ControlValue): NamedNode | Literal {
     if (value === null) {
       throw new Error("no value");
     }