Latest update:
Aside from the difficulty of finding (i.e., seeing) the cursor because of it’s very small size, the X11 interface does appear to be easier and better to use for running vassal modules.
I’ve tried a number of times and ways (and hours) trying to increase the size of the cursor, with or without a mouse attached, and have given up. Evidently it is way beyond any ability that I have to figure out how to do it, and I’ll have to wait for someone with the expertise in termux to figure out if (or how) it can be done, and hopefully write an executable script for it (or at least know how to present it in a step by step process that I can follow.)
Thanks for your help,
Hugh