• There are 201 files with units, with 26,079 lines of code.
• 1 very complex files (McCabe index sum 251+; 741 lines of code)
• 8 complex files (McCabe index sum 126-250; 5,132 lines of code)
• 42 medium complex files (McCabe index sum 51-125; 10,522 lines of code)
• 38 slightly complex files (McCabe index sum 26-50; 5,011 lines of code)
• 112 simple files (McCabe index sum 1-25; 4,673 lines of code)
• 20 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.

The McCabe index of a file grows with its size: per 100 lines tells a large but plain file from a dense one, and most complex unit whether the complexity sits in one unit or is spread over many.

File	# lines	# units	McCabe index (sum)	per 100 lines	most complex unit
picker_install.go in internal/autocomplete	741	29	253	34	48
preserve.go in internal/imagefont	712	8	218	31	49
requestflag.go in internal/requestflag	787	52	198	25	23
flagoptions.go in pkg/custom	652	16	185	28	69
explorer.go in internal/jsonview	801	56	182	23	17
cmdutil.go in pkg/custom	611	27	179	29	27
image_picker.go in pkg/custom	584	20	176	30	54
preserve_cff.go in internal/imagefont	503	8	157	31	53
gallery.go in internal/imagegallery	482	25	140	29	19
project_text_stream.go in pkg/transformers	335	14	110	33	25
image_picker_shell_setup.go in pkg/custom	312	12	107	34	37
codeql_upload.py in .github/scripts	235	9	105	45	39
pending.go in internal/imagegallery	247	9	97	39	22
preserve_aat.go in internal/imagefont	244	5	96	39	42
autocomplete.go in internal/autocomplete	329	12	93	28	25
picker_install_recovery.go in internal/autocomplete	295	11	90	31	19
image_picker_view.go in pkg/custom	314	14	90	29	46
custom_code_report.py in scripts/castiron	949	25	88	9	18
sdk_cross_link.py in .github/scripts	220	14	87	40	14
image_picker_state.go in pkg/custom	263	10	87	33	19
readable_errors.go in pkg/custom	248	9	83	33	18
source.go in internal/imagefontmac	184	5	80	43	36
local_errors.go in pkg/custom	229	5	80	35	42
font.go in internal/terminalimage	237	8	79	33	55
imagefont.go in internal/imagefont	313	15	79	25	21
display_saved_image.go in pkg/custom	172	7	79	46	34
preserve_variable.go in internal/imagefont	197	7	78	40	21
image_picker_folder.go in pkg/custom	307	16	78	25	22
image_picker_shell_profile.go in pkg/custom	184	6	75	41	34
multipartbody.go in pkg/custom	317	18	73	23	11
preserve_variable_names.go in internal/imagefont	198	2	71	36	55
profile.js in internal/imagefontmac	105	6	69	66	51
check-image-vscode.py in scripts	426	8	69	16	29
picker_install_permissions_windows.go in internal/autocomplete	129	11	67	52	42
kitty_output_session_unix.go in internal/terminalimage	278	11	64	23	16
image_models.go in pkg/custom	236	8	62	26	19
image_saving_commands.go in pkg/custom	223	7	62	28	19
help.go in internal/clihelp	244	6	61	25	41
image_picker_first_run.go in pkg/custom	165	7	61	37	15
readable_speech.go in pkg/custom	204	8	61	30	20
source.js in internal/imagefontmac	140	13	60	43	29
check-image-output-lifecycle.py in scripts	211	12	60	28	19
cleanup.go in internal/imagegallery	157	3	59	38	32
summarize_resources.go in pkg/transformers	124	3	58	47	35
image_picker_harness.py in scripts	166	15	57	34	10
image_loading_feedback.go in pkg/custom	166	8	57	34	20
encoder.go in internal/apiform	272	7	56	21	23
custom_code_budget.py in scripts/castiron	376	11	56	15	10
innerflag.go in internal/requestflag	220	22	55	25	13
save_generated_images.go in pkg/custom	175	5	55	31	43

• File complexity is the sum of the McCabe indexes (conditional complexity) of the units (methods, functions...) in a file.
• Files are classified in five categories based on that sum: 1-25 (simple files), 26-50 (slightly complex files), 51-125 (medium complex files), 126-250 (complex files), 251+ (very complex files). The default bands are five times the unit complexity bands, as a file is a group of units.
• Only main code files with units are classified. Files without units (languages without unit analysis, or files without functions) have no complexity to measure and are left out rather than counted as simple.
• A very complex file holds many decisions, which often means it has too many responsibilities: a candidate to split, and a place where changes need more testing.