By default, TiddlyWiki uses its default fonts (Arial or Helvetica) for it’s tiddlers editor. While these fonts are more than fine as default font for the text in tiddlers, I found it much less convinient when editing tiddler’s. Furthermore, it’s even a bad choice when one has code snippets in his tiddlers.
The following code snippet solves the problem by resetting the font used in the editor to monospaced font. Just add the following snippet:
/*{{{*/
.editor {
font-family: DejaVu Sans Mono, Courier New, monospace;
}
/*}}}*/
To your StyleSheet tiddler (or create it if it doesn’t exist yet). Now the next time you’ll edit a tiddler you will do it using a monospaced font.