PhpMetrics by Jean-François Lépine, gives static metrics about PHP project and classes. Here's what it gives to us for #MODX 2.3.0 dev...
- Each file is symbolized by a circle
- Size of the circle represents the Cyclomatic complexity
- Color of the circle represents te Maintenability Index
- Move your cursor on a circle to have details
Large red circles will be probably hard to maintain.