I was in the debug mode.And I create a Layer Properties button ,but it is only show the title. the code for it,
* @require plugins/LayerProperties.js
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{
ptype: "gxp_layerproperties",
actionTarget: ["tree.tbar"]
}
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How can I do to get a button as Layer Properties on geoexplorer tree panel that has 3 tags,like about,display and available styles? Especially the display tag is more important to move opacity slidebar.