| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| SPIFFYCAL_Views | 415 | 1,440 | |
| Spiffy_Calendar | 107 | 602 | |
| SPIFFYCAL_metaboxes | 106 | 438 | |
| SPIFFYCAL_customposts | 98 | 544 | |
| SPIFFYCAL_update_cleanup | 42 | 186 | |
| Spiffy_Today_Widget | 20 | 120 | |
| Spiffy_Upcoming_Widget | 16 | 100 | |
| Spiffy_Featured_Widget | 14 | 78 | |
| SPIFFYCALBlock | 14 | 117 | |
| SPIFFYCALShortcode | 12 | 241 | |
| Spiffy_MiniCal_Widget | 8 | 49 |