The breadcrumb navigation is subclassable.

Paint a thicker border by 1 pixel at the right edge before drawing the
map (that typically erases this extra border width). But sometimes (A),
the map is drawn 1 pixel too short, revealing this extra border width.

Before this commit, when (A), the game would keep leftover pixels
unerased from the previous drawing. Example of that bug:
Set game window to 1280x800.
Create a map sized 414x240.
Look at the map in the game or editor, and zoom in and out.

If you have a level mylevel.txt, highlight that in the singleplayer
browser. Enter the RepForLev dialog; this dialog will offer replays that
start with mylevel-. This dialog matches only by the files' basenames.

Get Hype: rm fling backroute
Toccata, backroute fix
Striking News: closer cacti, high water pit
Behind Bars 8/10

Raymanni: 3 multiplayer levels
Flopsy's Fire Escape, Harden the Paint