Objects selection Filter

When working with a lot of objects, it sometimes becomes hard to select specific objects. They are sometimes hidden behind or inside other objects. Though there is the Alt+Select option that pops up a panel listing all the objects under the cursor, i think a nice alternative would be to have an Object Selection Filter.

In the top bar for exemple, there would be several toggle buttons enabling selection for Mesh, Curves, Empties, Lights, Cameras and so on. When the object type is toggled off, the objects of this type could appear dimmer in the viewport or even XRayed for solid objects. (This could be an option).