Question about new resources?

[yorkgrass]

When I added new resources to the game, everything goes fine, the only thing bothers me is that when you see the city screen, all original resources have a nice tiny little symble, but the newly added ones are invisible???
I checked the xml, I don't think there is anything that different between new ones and original ones? Shall I change anything other than xml? please help everyone???

 

[Refar]

The icons on the city screen (and i think in Diplo - these should be screwed as well) are coming from Assets\res\Fonts\GameFont[_75].tga
The file is known for causing screw-ups; Look in the Tutorials section - there are several threads on "safe" editing.