feat(settings): wire ColorPicker sections for all 21 slots

HellionChat/Ui/Components/Settings/ColorPicker.cs

@@ -88,13 +88,167 @@ internal sealed class ColorPicker
         ImGui.TextUnformatted($"Editing: {buffer.Name}");
         ImGui.Separator();
 
-        // Sections land in Step 2; placeholder keeps the skeleton compiling.
+        DrawSection(
-        ImGui.TextDisabled("(sections land in next sub-step)");
+            "Surfaces",
+            buffer,
+            c =>
+                new[]
+                {
+                    ("WindowBg", c.WindowBg),
+                    ("ChildBg", c.ChildBg),
+                    ("FrameBg", c.FrameBg),
+                    ("Surface", c.Surface),
+                    ("SurfaceHover", c.SurfaceHover),
+                },
+            (c, edits) =>
+                c with
+                {
+                    WindowBg = edits[0].color,
+                    ChildBg = edits[1].color,
+                    FrameBg = edits[2].color,
+                    Surface = edits[3].color,
+                    SurfaceHover = edits[4].color,
+                }
+        );
+
+        DrawSection(
+            "Borders",
+            buffer,
+            c => new[] { ("Border", c.Border) },
+            (c, edits) => c with { Border = edits[0].color }
+        );
+
+        DrawSection(
+            "Text",
+            buffer,
+            c =>
+                new[]
+                {
+                    ("TextPrimary", c.TextPrimary),
+                    ("TextMuted", c.TextMuted),
+                    ("TextDim", c.TextDim),
+                },
+            (c, edits) =>
+                c with
+                {
+                    TextPrimary = edits[0].color,
+                    TextMuted = edits[1].color,
+                    TextDim = edits[2].color,
+                }
+        );
+
+        DrawSection(
+            "Brand — Primary",
+            buffer,
+            c =>
+                new[]
+                {
+                    ("PrimaryDark", c.PrimaryDark),
+                    ("Primary", c.Primary),
+                    ("PrimaryLight", c.PrimaryLight),
+                    ("PrimaryGlow", c.PrimaryGlow),
+                },
+            (c, edits) =>
+                c with
+                {
+                    PrimaryDark = edits[0].color,
+                    Primary = edits[1].color,
+                    PrimaryLight = edits[2].color,
+                    PrimaryGlow = edits[3].color,
+                }
+        );
+
+        DrawSection(
+            "Brand — Accent",
+            buffer,
+            c =>
+                new[]
+                {
+                    ("AccentDark", c.AccentDark),
+                    ("Accent", c.Accent),
+                    ("AccentLight", c.AccentLight),
+                },
+            (c, edits) =>
+                c with
+                {
+                    AccentDark = edits[0].color,
+                    Accent = edits[1].color,
+                    AccentLight = edits[2].color,
+                }
+        );
+
+        DrawSection(
+            "Identity",
+            buffer,
+            c => new[] { ("Identity", c.Identity) },
+            (c, edits) => c with { Identity = edits[0].color }
+        );
+
+        DrawSection(
+            "Status",
+            buffer,
+            c =>
+                new[]
+                {
+                    ("StatusSuccess", c.StatusSuccess),
+                    ("StatusDanger", c.StatusDanger),
+                    ("StatusWarning", c.StatusWarning),
+                    ("StatusInfo", c.StatusInfo),
+                },
+            (c, edits) =>
+                c with
+                {
+                    StatusSuccess = edits[0].color,
+                    StatusDanger = edits[1].color,
+                    StatusWarning = edits[2].color,
+                    StatusInfo = edits[3].color,
+                }
+        );
 
         ImGui.Separator();
         DrawActionButtons(buffer);
     }
 
+    private void DrawSection(
+        string title,
+        Theme buffer,
+        Func<ThemeColors, (string label, uint color)[]> slots,
+        Func<ThemeColors, (string label, uint color)[], ThemeColors> writeBack
+    )
+    {
+        if (!ImGui.CollapsingHeader(title, ImGuiTreeNodeFlags.DefaultOpen))
+        {
+            return;
+        }
+
+        var current = slots(buffer.Colors);
+        var changed = false;
+        var working = current.ToArray();
+
+        for (var i = 0; i < working.Length; i++)
+        {
+            var (label, color) = working[i];
+            var rgba = ColourUtil.RgbaToVector4(color);
+            if (
+                ImGui.ColorEdit4(
+                    $"{label}##slot-{title}-{i}",
+                    ref rgba,
+                    ImGuiColorEditFlags.AlphaBar | ImGuiColorEditFlags.AlphaPreviewHalf
+                )
+            )
+            {
+                working[i] = (label, ColourUtil.Vector4ToRgba(rgba));
+                changed = true;
+            }
+        }
+
+        if (changed)
+        {
+            var mutated = writeBack(buffer.Colors, working);
+            _themes.UpdateEditingBuffer(mutated);
+        }
+    }
+
     private void DrawActionButtons(Theme buffer)
     {
         if (ImGui.Button("Save"))