Description of problem: Upon install, anaconda's timezone selection GUI does not have an obvious city for central time. There seems to be a big open spot in the central USA with no cities to select, and Chicago is just too far over to be "obviously" central. Please consider adding a central-time city actually in the geographic central USA. I suggest Kansas City, Kansas or Dallas, Texas. Along the same lines, is there really reason to have that many cities clustered together on the map just to the southeast of Chigago?
The cities clustered just below Chicago are mosty part of Indiana, where there were a lot of changes, DST-wise as well as zone-wise, historically as well as recently. We need to treat each city separately because zoneinfo (tzdata) are are also historical database, and historical records for these cities differ. So the reason why only Chicago is here to represent Central time is that there were no historical breakups in this region that would warrant stuffing more cities into the database. Actually, what zoneinfo does, is that it provides generic identifiers, that only happen to match names of the cities (because it's convenient from the maintenance point of view). If there is a need e.g. to display exact geographical, country or state boundaries, list all cities, filter cities according to some rule (e.g. to address the Chicago cluster which may be irrelevant today), this calls for a project that would define and *maintain* independent list that maps to the generic zoneinfo identifiers. I don't see this going to happen inside upstream zoneinfo project.