| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| FP_Admin_Settings | 118 | 706 | |
| FP_Settings | 79 | 219 | |
| FP_Order_Adapter | 67 | 213 | |
| FP_Factory | 58 | 422 | |
| FP_Plugin | 46 | 159 | |
| FP_Server_Error | 44 | 158 | |
| FP_Email_Handler | 43 | 220 | |
| FP_Order_Handler | 37 | 191 | |
| FP_Abstract_Logger | 34 | 103 | |
| FP_Bulk_Actions | 31 | 205 | |
| FP_Admin_Notices | 26 | 101 | |
| FP_Abstract_Client | 22 | 87 | |
| FP_Abstract_Plugin | 21 | 68 | |
| FP_Migration_2_0_0_Refactoring | 20 | 98 | |
| FP_Session | 19 | 70 | |
| FP_Abstract_Module | 17 | 49 | |
| FP_Verbosity | 16 | 61 | |
| FP_Handler | 14 | 56 | |
| FP_Mailer | 13 | 47 | |
| FP_Order_Action | 13 | 74 | |
| FP_Logger | 12 | 36 | |
| FP_Abstract_Settings | 12 | 35 | |
| FP_Storage_Error | 10 | 35 | |
| FP_Plugin_Update | 10 | 45 | |
| FP_Client_Error | 9 | 32 | |
| FP_Loader | 8 | 25 | |
| FP_Customer_Link | 8 | 40 | |
| FP_Admin_Assets | 8 | 26 | |
| FP_Storage | 7 | 25 | |
| FP_Factory_Error | 7 | 26 | |
| FP_Viewer | 6 | 29 | |
| FP_Migration_2_3_1_Renaming | 6 | 24 | |
| FP_Client | 5 | 15 | |
| FP_Migration_3_0_6_Renaming | 4 | 13 | |
| FP_Migration_3_0_5_Renaming | 4 | 16 | |
| FP_Migration_2_1_0_Line_Description_Option | 3 | 8 | |
| FP_Export_Error | 2 | 9 | |
| FP_Abstract_Error | 1 | 0 |