With realms in more than one category, the realm list shows the stock category tabs, so every realm can be reached. Before, it listed only the first category's realms and had no way to the rest.
- **The Region** is `Wow.ini`'s `[WoW Config] Region`, read through the archive chain as `0x40249d` loads it (the stock install ships it in `interface.MPQ`), with the section and key compared case-insensitively (`0x445356`, `0x4453cb`) and the value parsed as `0x445470` does. It is 0 when the file or the key is missing.
- **The categories** are the `Cfg_Categories.dbc` rows whose Region column equals it, in file order (`0x46e300`): id from column 0, name from the row.
- **Placement** (`0x46e510`): a realm's category byte 0 takes the first category's id (`0x46e5b8`), then joins every category with that id (`0x46e60b`). A byte matching no category puts the realm on no tab, as in 1.12.1. Tab ordinals count the non-empty categories only (`0x46edf0`), and the load-band statistics still run over every realm.
- **The tabs** are built from `RealmList.xml`: hidden for one category, `RealmListTab1`..`N` with the category names for two to eight, the front one raised and disabled. A click fronts the tab and re-lists (`RealmListTab_OnClick`), the highlight falls back to the current realm or none, and the scroll clamps to the new tab. Change Realm and `OnShow` keep the stored category (`0x46f188`, `0x46f400`).
- **No Region rows**: every realm lists on one untabbed page. The reference reads a NULL category there (`0x46f26a`, `0x46e5b8`), and benilla does not copy the fault.
- **Logging in** by name, the remembered or current realm, still searches every realm, as the reference resolves by name.
- A dev capture, `WOW_CAPTURE=glue-realmlist`, shows two tabs over five invented realms.
Checked: tests for the Region read, the category rows for a US and an EU Region from the install's DBC, placement (byte 0 folded, an unmatched byte on no tab), the strip hidden for one category and named for two, a tab click through the real click path, the highlight and scroll on a switch, the stored category across Change Realm, the statistics over every realm, and the no-rows fallback. Each fails with its piece undone. Gates and the smoke run green on macOS; no platform seam touched.
Fixes#362🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
