K4 assign articles

Hi All,

I want to assign articles to multiple files, I am able to do it, but not able to change user color to yellow. I am not able to find Here​ properties for color information.

Here is my code.

1. myFolder = Folder.selectDialog ("Select folder with indd..."); 
2. if(myFolder != null){ 
3.   batch_process (myFolder); 
4. } 
5. function batch_process (theFolder) { 
6.   var myFileList = theFolder.getFiles(); 
7.   for(var i=0; i<myFileList.length; i++){ 
8.   var myFile = myFileList; 
9.   if(myFile instanceof File && myFile.name.match(/\.indd$/i)){ 
10.   try { 
11.   var doc = app.open (myFile, true); 
12.   }catch (e) { 
13.   alert("Please open in upper version..."); 
14.   exit(); 
15.   } 
16.   //insert function here 
17.   add_article (doc); 
18.   try { 
19.   doc.close(SaveOptions.YES); 
20.   }catch (e) { 
21.   alert("InDesign file is converted..."); 
22.   exit(); 
23.   } 
24.   }else if(myFile instanceof Folder){ 
25.   batch_process (myFile); 
26.   } 
27.   } 
28. } 
29.  
30. function add_article (myDocument) { 
31.   var myArticleName = myDocument.name.slice(0, -5); 
32.   if(myDocument.k4Articles.length == 0){ 
33.   var myArticle = myDocument.k4Articles.add({k4Name: myArticleName, articleColor: UIColors.YELLOW}); 
34. //~ myArticle.label = UIColors.YELLOW; 
35.   }else { 
36.   alert("Already, articles created in this document..."); 
37.   exit(0); 
38.   } 
39.   for(i=0; i<myDocument.stories.length; i++){ 
40.   myArticle.k4AttachObjectInDocument(myDocument.stories); 
41.  
42.   } 
43. } 

Could anyone help me?

Sumit