Enhancement: Comparing reference labels with custom labels

[mihem]

Great tool!
Annotating T cells is really hard and this tool is really helpful especially because it also provides a reference atlas.
However, I am missing a function that allows a comparison between custom labels of the query dataset and the labels of the reference dataset. Although plot.projection shows you where your cells are located, it does not allow a direct comparison between custom labels of the query dataset and the labels of the reference atlas.

A very easy solution would be a heatmap showing reference annotation as columns and your labels as rows.
If your labels are stored in query.projected@meta.data$cluster:

table(query.projected$cluster, query.projected$functional.cluster) |>
    pheatmap::pheatmap(scale = "row")