better color in densesmatrix legend : miRNA isoform expression colums,  some of the first subcolumn is almost all grey, simply use the first column in a multi-subcolumn sitution does not work anymore for miRNA isoform data.  I changed the code to find the subcolumn with max number of samples covered, and use that subcolumn colorscale in legend
better color in densesmatrix legend : miRNA isoform expression colums,  some of the first subcolumn is almost all grey, simply use the first column in a multi-subcolumn sitution does not work anymore for miRNA isoform data.  I changed the code to find the subcolumn with max number of samples covered, and use that subcolumn colorscale in legend

ucscXena/ucsc-xena-client,acthp/ucsc-xena-client,ucscXena/ucsc-xena-client,acthp/ucsc-xena-client,ucscXena/ucsc-xena-client,ucscXena/ucsc-xena-client,ucscXena/ucsc-xena-client,acthp/ucsc-xena-client