In addition to this, could you look into the unevenness of the tab spacing.
When adding tabs to end of a line, to make comments like in the manual, they never seem to line up. If you open the .bas file in a text editor, and line up all the comments with tabs, the open axepad, all the comments are unaligned. Nothing major, just annoying.
If I had to guess, I'd say axepad is adding tabs that are 4 spaces wide (my personal setting) but not using fixed tab stops across the page to get everything in line.