Customize icons for documents in the document listing
The CMS picks up custom icons for document types when they exist. The lookup path is res/ relative to the class org.hippoecm.frontend.plugins.standards.icon.BrowserStyle.
Example
To customize the icon for documents of type
myproject:newsitem
add the following file to the 'cms' module of your project:
cms/src/main/resources/org/hippoecm/frontend/plugins/standards/icon/res/myproject-newsitem-32.svg
It's also possible to use a PNG icon instead of an SVG.
Note that the filename of the icon should be [namespace]-[documenttype]-32.[extension]. The icon gets scaled appropriately, so it doesn't have to be 32 x 32px, it only has to look good when scaled to 32 x 32px.
Rebuild the project to see your changes.