Thanks for your help osiris4isis.
I'm not deleting files, there are 24 camerakSM.bmp files in the resolution folder. I know that there are 32 categories in total, I know that I have to modify the image also in speedwarn.bmp files
The problem is that if I modify the category for example the "6" for "30"in

diMkaWA_P174 Nk's_c.zip\ui_igo9\480_272 camerakSM_6.bmp by camerakSM_30.bmp
diMkaWA_P174 Nk's_c.zip\ui_igo9\common\ui\variable_def.ui "type = 6" by "type = 30"

to use 30 instead of 6, then the program asks me for camerakSM_6.bmp


Should we modify something else?