node cleanups

ournodes.c

@@ -388,7 +388,7 @@ void ourRegisterNodes(){
     LA_IDN_REGISTER("Brush Outputs",U'🖌',OUR_IDN_BRUSH_OUTPUTS,OUR_PC_IDN_BRUSH_OUTPUTS, IDN_BrushOutputs, OurBrushOutputsNode);
     LA_IDN_REGISTER("Brush Device",U'🖳',OUR_IDN_BRUSH_DEVICE,OUR_PC_IDN_BRUSH_DEVICE, IDN_BrushDevice, OurBrushDeviceNode);
     
-    laNodeCategory* nc=laAddNodeCategory("Our Paint",0,LA_RACK_TYPE_DRIVER);
+    laNodeCategory* nc=laEnsureNodeCategory("Our Paint",0,LA_RACK_TYPE_DRIVER);
 
     laNodeCategoryAddNodeTypes(LA_NODE_CATEGORY_DRIVER, &OUR_IDN_BRUSH_OUTPUTS,0);
     laNodeCategoryAddNodeTypes(nc, &OUR_IDN_BRUSH_DEVICE, 0);