diff --git a/src/AcDream.Plugins.MossTank/MossTankPanel.cs b/src/AcDream.Plugins.MossTank/MossTankPanel.cs
index f6b20534..a5eff9a1 100644
--- a/src/AcDream.Plugins.MossTank/MossTankPanel.cs
+++ b/src/AcDream.Plugins.MossTank/MossTankPanel.cs
@@ -501,16 +501,23 @@ internal sealed partial class MossTankPanel
     // with a clVal VALUE column, and filters both through lFilterList — a
     // category checklist keyed by SettingsCategories' own per-setting
     // bitmask (VtankDefaultSettingsDatabase.SettingCategoryBitmasks, 136
-    // rows straight from the embedded .usd). This worktree has no
-    // refs/vtank/ checkout, so VTank's own category NAME strings aren't
-    // available anywhere in this repo — the filter groups are labeled by
-    // their raw bit value ("0x04" etc.) instead of a guessed name; a
-    // setting with no recorded bitmask always shows regardless of filter
-    // state (never silently hidden by a filter that doesn't apply to it).
+    // rows straight from the embedded .usd). Round D (owner live report
+    // 2026-09-07: "Some Hex numbers with green button to the right. What
+    // is that?") replaced the raw bit-value labels ("0x04" etc.) with the
+    // real category NAMES (Misc, Recharge, MeleeCombat, SpellCombat,
+    // Ranges, Navigation, Buffing, Crafting, Looting) — see
+    // VtankOptionCatalog.CategoryNamesByBit for how each name is derived
+    // without a refs/vtank/ checkout. A setting with no recorded bitmask
+    // always shows regardless of filter state (never silently hidden by a
+    // filter that doesn't apply to it).
     public IReadOnlyList<string> AdvancedOptionNames => _advancedOptionNames;
     public IReadOnlyList<string> AdvancedOptionValueColumn => _advancedOptionValueColumn;
     public IReadOnlyList<string> AdvancedOptionCategoryNames { get; } =
-        VtankOptionCatalog.CategoryBits.Select(bit => $"0x{bit:X}").ToArray();
+        VtankOptionCatalog.CategoryBits
+            .Select(bit => VtankOptionCatalog.CategoryNamesByBit.TryGetValue(bit, out string? name)
+                ? name
+                : $"0x{bit:X}")
+            .ToArray();
     public IReadOnlyList<bool> AdvancedOptionCategoryEnabled => _advancedOptionCategoryEnabledView;
     // Fix round B item 15's own build-over-real-files test caught this:
     // <list> markup REQUIRES a "selected" int binding (MarkupDocument.
diff --git a/src/AcDream.Plugins.MossTank/VtankOptionCatalog.cs b/src/AcDream.Plugins.MossTank/VtankOptionCatalog.cs
index e5abaa75..83e6437b 100644
--- a/src/AcDream.Plugins.MossTank/VtankOptionCatalog.cs
+++ b/src/AcDream.Plugins.MossTank/VtankOptionCatalog.cs
@@ -404,6 +404,52 @@ internal static class VtankOptionCatalog
         .Order()
         .ToArray();
 
+    /// <summary>
+    /// VTank's own <c>lFilterList</c> checklist NAMES (owner live report
+    /// 2026-09-07: the popup showed raw bitmask hex — "0x1", "0x2" — instead
+    /// of category names). This worktree has no <c>refs/vtank/</c> checkout
+    /// to read VTank's own name/enum string literal for each bit directly,
+    /// so each name is instead anchored to a real setting whose Category
+    /// column in docs/research/vtank-kb/01-settings-and-profiles.md §2
+    /// names EXACTLY ONE category (no <c>|</c> combination), then read back
+    /// THAT setting's own recorded bitmask from the embedded .usd
+    /// (<see cref="VtankDefaultSettingsDatabase.SettingCategoryBitmasks"/>)
+    /// — never a typed-in hex literal, so the mapping cannot silently drift
+    /// from what the shipped database actually encodes. Anchors used (KB §2
+    /// row, single-category setting, resulting bit): row 45
+    /// RandomHelperBuffs→Misc(1), row 8 Recharge-Norm-HitP→Recharge(2), row
+    /// 31 DefaultMeleeAttackHeight→MeleeCombat(4), row 5
+    /// SpellDiffExcessThreshold-Hunt→SpellCombat(8), row 18
+    /// AttackDistance→Ranges(16), row 2 EnableNav→Navigation(32), row 3
+    /// EnableBuffing→Buffing(64), row 7
+    /// ArrowheadFletchDiffExcessThreshold→Crafting(128), row 1
+    /// EnableLooting→Looting(256) — all 9 of <see cref="CategoryBits"/>.
+    /// </summary>
+    internal static readonly IReadOnlyDictionary<int, string> CategoryNamesByBit =
+        BuildCategoryNamesByBit();
+
+    private static IReadOnlyDictionary<int, string> BuildCategoryNamesByBit()
+    {
+        IReadOnlyDictionary<string, int> bitmasks = VtankDefaultSettingsDatabase.SettingCategoryBitmasks;
+        (string Setting, string Category)[] anchors =
+        [
+            ("RandomHelperBuffs", "Misc"),
+            ("Recharge-Norm-HitP", "Recharge"),
+            ("DefaultMeleeAttackHeight", "MeleeCombat"),
+            ("SpellDiffExcessThreshold-Hunt", "SpellCombat"),
+            ("AttackDistance", "Ranges"),
+            ("EnableNav", "Navigation"),
+            ("EnableBuffing", "Buffing"),
+            ("ArrowheadFletchDiffExcessThreshold", "Crafting"),
+            ("EnableLooting", "Looting"),
+        ];
+        var map = new Dictionary<int, string>();
+        foreach ((string setting, string category) in anchors)
+            if (bitmasks.TryGetValue(setting, out int bit))
+                map[bit] = category;
+        return map;
+    }
+
     private static IEnumerable<int> DecomposeBits(int mask)
     {
         for (int bit = 1; bit != 0 && bit <= mask; bit <<= 1)
diff --git a/tests/AcDream.Plugins.MossTank.Tests/MossTankPanelTests.cs b/tests/AcDream.Plugins.MossTank.Tests/MossTankPanelTests.cs
index 4a6e4874..558f1cf5 100644
--- a/tests/AcDream.Plugins.MossTank.Tests/MossTankPanelTests.cs
+++ b/tests/AcDream.Plugins.MossTank.Tests/MossTankPanelTests.cs
@@ -1280,6 +1280,30 @@ public sealed class MossTankPanelTests
         Assert.False(panel.LootEditorVisible);
     }
 
+    /// <summary>
+    /// Round D item 1 (owner live report 2026-09-07: "Some Hex numbers with
+    /// green button to the right. What is that?"): the category filter
+    /// checklist must show VTank's real category NAMES, never the raw
+    /// bitmask hex the popup showed before this fix. Order is
+    /// VtankOptionCatalog.CategoryBits' own ascending-bit order, which is
+    /// also VTank's cmbAdvOptFilterCategory order (Misc=1 through
+    /// Looting=256).
+    /// </summary>
+    [Fact]
+    public void AdvancedOptionCategoryNamesShowRealNamesNotHexBitmasks()
+    {
+        var panel = new MossTankPanel(new FakeHost(new FakeAutomation()));
+
+        Assert.Equal(
+            [
+                "Misc", "Recharge", "MeleeCombat", "SpellCombat", "Ranges",
+                "Navigation", "Buffing", "Crafting", "Looting",
+            ],
+            panel.AdvancedOptionCategoryNames);
+        Assert.DoesNotContain(
+            panel.AdvancedOptionCategoryNames, name => name.StartsWith("0x", StringComparison.Ordinal));
+    }
+
     [Fact]
     public void AdvancedOptionCategoryFilterHidesNonMatchingSettings()
     {