As some users spend a good deal of time on this application, and must stare at screens in order to do so, then the option to change background colours to something more restful to the eye would be appreciated. At this time, for instance, one cannot switch the screen to dark modes, or to colours like green which are more restful to the eyes. It would improve UI to allow for text / background customization, and would require very little software integration in order to so do.