In previous project I had this function defined in AppDeligate.m and it was globally available to all the parts of the app:

```
#define UIColorFromRGB(rgbValue) [UIColor \
colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \
blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]

```

Now for some reason when I place this code in a new project, only the specific class can see the function, but the child classes do not see it. 

How do I make this function globally available?