I am using Ubuntu 14.10 with the Unity interface, and I have created a custom keyboard layout by manually creating an xkb symbols file. I put the file in
/usr/share/X11/xkb/symbols/ and I have also edited
/usr/share/X11/xkb/rules/evdev.xml to include a reference to my layout. Everything worked fine: at the Text Entry settings dialog I added my layout and I am now typing this question with it.
But the keyboard indicator (the rectangle on the top bar that shows which input source is currently active) shows my layout on a dark gray background, whereas the "normal" layouts are displayed on a brighter background.
Is that behavior normal or does it indicate some problem? What do I need to do in order for my keyboard layout to be treated like the others?