- New track type: **ase** (allele-specific expression). Shows variant allele frequency for SNPs in genes, in DNA and RNA, in order to display if some genes are expressed from only one allele. See [the documentation](https://figeno.readthedocs.io/en/latest/content/describe_figure.html#ase). This requires preprocessed data generated by [fast_ase](https://github.com/e-sollier/fast_ase).
- bed track: added use_file_colors option to use colors provided in the bed file (ninth column), show_strand to show the orientation of each interval. By default, overlapping intervals will now be displayed on multiple rows, unless collapsed is set to true.
- GUI: added tooltips to explain the effect of each parameter.