This reverts commit 7e678c34 and the followup.
A B +-----+ +-----+ C | | |XXXXX| +---+ | XXX | |X X| |XXX| | XCX | |X C X| |XCX| | XXX | |X X| |XXX| | | |XXXXX| +---+ +-----+ +-----+
Initially it was A, the referenced commit changed it to be B instead, which created a 1px gap between frame and content, and the followup avoids that gap by adjusting the frame width, resulting in C.
Although it's consistent, it leads to a worse apperance in places where the 1px margin between frame and rect was expected.
See the discussion in !52 (merged).