Repository Category and Icon

Thank you Gabor!  This help alot but I was not able to get what I wanted.

Here is the plugin.xml code:

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<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>
<plugin>

   <!-- This is an example for providing an own category -->
      <extension
         point="org.knime.workbench.repository.categories">
      <category
            description="Category containing my nodes"
            icon="icons/default.png"
            level-id="myNodes"
            name="My nodes"
            path="/"/>
   </extension>
 
   
   <extension
         point="org.knime.workbench.repository.nodes">
      <node
            factory-class="org.optum.knime.readfasta.ReadFastNodeFactory"
            id="org.optum.knime.readfasta.ReadFastNodeFactory"/>
   </extension>
   
</plugin>

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Using the above code, the try to create a new category call "My nodes" but it was not created.

Instead, the node appear in the root directory.

Also, if I wanted to put a custom icon, do you know where I can place the .png file within the knime folder structure.

Thanks,

Ky