Revert "Draw frame outline at the outer edge, not a pixel further inside"

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.