desktopfile.txt

From Camunda Modeler, the following tips might be useful wrt mime types and how to install.

xdg-desktop-menu install $DESKTOP_FILE
xdg-icon-resource install --size  16 "$CAMUNDA_MODELER_BIN/support/icon_16.png"  $ICON_NAME
xdg-icon-resource install --size  48 "$CAMUNDA_MODELER_BIN/support/icon_48.png"  $ICON_NAME
xdg-icon-resource install --size 128 "$CAMUNDA_MODELER_BIN/support/icon_128.png"  $ICON_NAME
xdg-mime install "$CAMUNDA_MODELER_BIN/support/camunda-modeler-mime-types.xml"

With the mime types file being:

<?xml version="1.0" encoding="UTF-8"?>
<mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
  <mime-type type="application/bpmn">
    <comment>BPMN model</comment>
    <acronym>BPMN</acronym>
    <expanded-acronym>Business Process Model and Notation</expanded-acronym>
    <glob pattern="*.bpmn"/>
    <glob pattern="*.bpmn20.xml"/>
    <sub-class-of type="application/xml"/>
    <generic-icon name="application-xml"/>
    <root-XML namespaceURI="http://www.omg.org/spec/BPMN/20100524/MODEL" localName="definitions"/>
  </mime-type>
  <mime-type type="application/cmmn">
    <comment>CMMN model</comment>
    <acronym>CMMN</acronym>
    <expanded-acronym>Case Management Model and Notation</expanded-acronym>
    <glob pattern="*.cmmn"/>
    <sub-class-of type="application/xml"/>
    <generic-icon name="application-xml"/>
    <root-XML namespaceURI="http://www.omg.org/spec/CMMN/20151109/MODEL" localName="definitions"/>
  </mime-type>
  <mime-type type="application/dmn">
    <comment>DMN model</comment>
    <acronym>DMN</acronym>
    <expanded-acronym>Decision Model and Notation</expanded-acronym>
    <glob pattern="*.dmn"/>
    <sub-class-of type="application/xml"/>
    <generic-icon name="application-xml"/>
    <root-XML namespaceURI="http://www.omg.org/spec/DMN/20151101/dmn11.xsd" localName="definitions"/>
    <root-XML namespaceURI="http://www.omg.org/spec/DMN/20151101/dmn.xsd" localName="definitions"/>
  </mime-type>
</mime-info>