Any technical cinephiles out there who can explain the reason for the effect visible here, common in older movies, in which a fading title "detours" briefly through a bright color on its way to black? I feel like it must be pretty basic but… I do not possess even basic knowledge
It has something to do with how titles used to be composited, but, there's the problem: I have no idea how titles used to be composited!
For your edification, here is the complete title sequence for Battles Without Honor and Humanity, which is perfect
For your edification, here is the complete title sequence for Battles Without Honor and Humanity, which is perfect

Yes!! This is precisely the effect that Stranger Things is "referencing" in its credits. https://twitter.com/stallmeister/status/1250455414011039744
Here: notice how the white titles "detour" through red on their way in & out. So, yes, this is obviously "an optical thing having to do with how they composited titles on film, before computers" but I want to know ~the details~