Spent way too long on this for a board post. This is about how to fix a problem that a lot of you with your 4K monitors probably couldn't notice even if you tried: colors and transparency on the edge of a texture bleeding into the opposite edge at high mipmap levels. Unless Miku is being rendered at a height of about 300 pixels, you won't see this problem.
Archive has a few extra pictures, mostly at 320x200 resolution, for comparison and a bit more explanation. Also a shader version in which this problem doesn't appear (texClamp versions), which should be very useful for all those people rendering at 240p. We know you're out there.
https://www.mediafire.com/file/qd747jtxs0nhuza/Tex+address+clamp+vs+wrap.zip/fileModel links in the archive. Regrettably, I won't be checking for any replies before this thread gets deleted in a month.