What software/tool can I use to visualise a multiple sequence alignment in the xmfa format as produced by command-line tool Mauve? What software/tool can I use to visualise a multiple sequence alignment in the xmfa format as produced by command-line tool Mauve?

I am particularly interested in seeing the single nucleotide polymorphisms on the screen.

I am doing a multiple sequence alignment of about a dozen whole genomes, all in a single contig. 

Link to Mauve
Typically I use the Mauve viewer to visualize the alignments.  Are there things you find lacking in that viewer?

There are multiple threads about converting xmfa to other formats