It would be much easier to see what troops you have if they were sorted in vertical columns by element color. That would mean adding or changing code to enable a column sort, with columns able to be different lengths.
The way it is now, when there’s more than 2 troops per color, is a jumbled mess that takes extra concentration to see what’s available. If they were in columns and you want to quickly see what you have in blue, just look at blue, all stacked in a single column.
Column sorting heroes by element would also be nice. Would make it quicker to see what’s available in each element when setting up teams.