Karabiner app based config - caps to esc or caps

private.xml

<?xml version="1.0"?>
<root>
  <appdef>
    <appname>CHROME</appname>
    <equal>com.google.Chrome.canary</equal>
  </appdef>
  <item>
    <name>CAPS TO CAPS in Chrome Canary</name>
    <identifier>private.app_chrome_caps_caps</identifier>
    <only>CHROME</only>
    <autogen>__KeyToKey__ KeyCode::F19, KeyCode::CAPSLOCK</autogen>
  </item>
  <item>
    <name>CAPS TO ESC in all but Chrome Canary</name>
    <identifier>private.app_chrome_caps_esc</identifier>
    <not>CHROME</not>
    <autogen>__KeyToKey__ KeyCode::F19, KeyCode::ESCAPE</autogen>
  </item>
</root>