When working in Sitecore page editor, our editors navigate through the tree of placeholders, components and edit frames using the blue arrow icon to open the component navigator. The component navigator shows each ancestor in the tree (from the context of the area of the page where the editor clicked) with a title and a small blue square bullet icon:
/sitecore/shell/~/icon/ApplicationsV2/16x16/bullet_square_glass_blue.png.aspx
Unfortunately, all components, placeholders and edit frames are represented by the same icon, and it isn't always easy to tell the difference between a component and a placeholder by title alone (edit frame buttons have an editable title and tooltip, in the core database).
Ideally, we'd like to have colour coded bullet icons that would help our editors understand where they were and what they were clicking on.
These aren't icons as used in the content tree.
So is there anywhere that I can set a different icon for each of these? If not, is there a code fix for this?
Edit for clarification: The blue bullets in this image - Body is a placeholder, the first Image Banner is a component, the second an Edit Frame (will get a new title), Banner Overlay is another placeholder: