These are all from LZA 1.0.3, but I haven't seen any major changes compared to 1.0.0.
Symbols are mine or inspired by previous games such as BDSP.
pml_Capture_JudgeCapture.c - main function
pml_Capture_CalcCaptureIndicator.c
get_ball_capture_ratio - used for ball capture modifiers
In-game capture estimation - used for the carets when locking on to a Pokémon
Capture Config Flatbuffer Files
capture_ball_data.json - Timer, Heavy, Level, Quick ball modifiers. Overrides values in exefs.
capture_data.json - Various multipliers
capture_zarank_data.json
Most of the pseudocode was initially labeled by SciresM, which allowed me to test in-game to see that the game decides the modifiers in a completely different way than expected.
The config files were found by Kaphotics.
The following are changes since 2.0.0.
pml_Capture_JudgeCapture.c - main function now applies donut bonus
pml_Capture_PreCalcCaptureParams.c - donut bonus calculated from the in-game capture estimation