Currently, the listing contains the Courant and Fourier numbers for the momentum equation, and the combined Courant/Fourier criterion. It could be interesting to also have this combined Courant/Fourier criterion for transported scalars. This might be especially relevant for buoyant scalars.

See https://github.com/enthought/pyface/blob/33542a4afd6452f08c18756229253b3d384e0da1/pyface/i_splash_screen.py#L31

Using an Image trait here would mean that users could pass image names or paths instead of ImageResource objects.

When converting a file the tool seems to append a new line to the end of the file under certain conditions - Not sure what conditions.

When it appends a new line it seems to always append a "\n" unix style new line. Even when the rest of the file may have different line endings.

1. Does the tool have to append a newline? If so.
2. Can the output file have consistent line endings that ideall