diff --git a/client/Configuration.cs b/client/Configuration.cs
index c5789f7..c8bbeb2 100644
--- a/client/Configuration.cs
+++ b/client/Configuration.cs
@@ -20,6 +20,10 @@ public class Configuration : IPluginConfiguration {
     public bool HideTitlebar;
     public bool ShowEmotes = true;
     public float EmoteAlpha = 25.0f;
+    public float SignAlpha = 100.0f;
+    public float SignRed = 100.0f;
+    public float SignGreen = 100.0f;
+    public float SignBlue = 100.0f;
     public float ViewerOpacity = 100.0f;
     public int DefaultGlyph = 3;
 }
diff --git a/client/Ui/MainWindowTabs/Settings.cs b/client/Ui/MainWindowTabs/Settings.cs
index 3cfbd7c..bdd1b91 100644
--- a/client/Ui/MainWindowTabs/Settings.cs
+++ b/client/Ui/MainWindowTabs/Settings.cs
@@ -1,6 +1,7 @@
 using System.Globalization;
 using System.Numerics;
 using Dalamud.Utility;
+using FFXIVClientStructs.Interop;
 using ImGuiNET;
 using Lumina.Excel.GeneratedSheets;
 using OrangeGuidanceTomestone.Helpers;
@@ -38,6 +39,7 @@ internal class Settings : ITab {
             ("General", this.DrawGeneral),
             ("Writer", this.DrawWriter),
             ("Viewer", this.DrawViewer),
+            ("Signs", this.DrawSigns),
             ("Unlocks", this.DrawUnlocks),
             ("Account", this.DrawAccount),
             ("Debug", this.DrawDebug),
@@ -121,7 +123,6 @@ internal class Settings : ITab {
         anyChanged |= vfx |= ImGui.Checkbox("Disable in Deep Dungeons", ref this.Plugin.Config.DisableDeepDungeon);
         anyChanged |= vfx |= ImGui.Checkbox("Disable in cutscenes", ref this.Plugin.Config.DisableInCutscene);
         anyChanged |= vfx |= ImGui.Checkbox("Disable in /gpose", ref this.Plugin.Config.DisableInGpose);
-        anyChanged |= vfx |= ImGui.Checkbox("Remove glow effect from signs", ref this.Plugin.Config.RemoveGlow);
 
         var tt = this.Plugin.DataManager.GetExcelSheet<TerritoryType>();
         if (tt == null) {
@@ -226,6 +227,81 @@ internal class Settings : ITab {
         anyChanged |= ImGui.SliderFloat("Player emote opacity", ref this.Plugin.Config.EmoteAlpha, 0f, 100f, "%.2f%%");
     }
 
+    private void DrawSigns(ref bool anyChanged, ref bool vfx) {
+        anyChanged |= vfx |= ImGui.Checkbox("Remove glow effect from signs", ref this.Plugin.Config.RemoveGlow);
+        if (ImGui.SliderFloat("Sign opacity", ref this.Plugin.Config.SignAlpha, 0, 100, "%.2f%%")) {
+            anyChanged = true;
+
+            this.WithEachVfx(vfx => {
+                unsafe {
+                    vfx.Value->Alpha = Math.Clamp(this.Plugin.Config.SignAlpha / 100.0f, 0, 1);
+                }
+            });
+        }
+
+        var intensity = (this.Plugin.Config.SignRed + this.Plugin.Config.SignGreen + this.Plugin.Config.SignBlue) / 3;
+        if (ImGui.SliderFloat("Sign intensity", ref intensity, 0, 100, "%.2f%%")) {
+            anyChanged = true;
+            this.Plugin.Config.SignRed = intensity;
+            this.Plugin.Config.SignGreen = intensity;
+            this.Plugin.Config.SignBlue = intensity;
+
+            var scaled = Math.Clamp(intensity / 100.0f, 0, 1);
+            this.WithEachVfx(vfx => {
+                unsafe {
+                    vfx.Value->Red = scaled;
+                    vfx.Value->Green = scaled;
+                    vfx.Value->Blue = scaled;
+                }
+            });
+        }
+
+        if (ImGui.TreeNodeEx("Individual colour intensities")) {
+            using var treePop = new OnDispose(ImGui.TreePop);
+
+            if (ImGui.SliderFloat("Red intensity", ref this.Plugin.Config.SignRed, 0, 100, "%.2f%%")) {
+                anyChanged = true;
+                this.WithEachVfx(vfx => {
+                    unsafe {
+                        vfx.Value->Red = Math.Clamp(this.Plugin.Config.SignRed / 100, 0, 100);
+                    }
+                });
+            }
+
+            if (ImGui.SliderFloat("Green intensity", ref this.Plugin.Config.SignGreen, 0, 100, "%.2f%%")) {
+                anyChanged = true;
+                this.WithEachVfx(vfx => {
+                    unsafe {
+                        vfx.Value->Green = Math.Clamp(this.Plugin.Config.SignGreen / 100, 0, 100);
+                    }
+                });
+            }
+
+            if (ImGui.SliderFloat("Blue intensity", ref this.Plugin.Config.SignBlue, 0, 100, "%.2f%%")) {
+                anyChanged = true;
+                this.WithEachVfx(vfx => {
+                    unsafe {
+                        vfx.Value->Blue = Math.Clamp(this.Plugin.Config.SignBlue / 100, 0, 100);
+                    }
+                });
+            }
+        }
+    }
+
+    private void WithEachVfx(Action<Pointer<Vfx.VfxStruct>> action) {
+        if (!this.Plugin.Vfx.Mutex.With(TimeSpan.Zero, out var releaser)) {
+            return;
+        }
+
+        using (releaser) {
+            foreach (var (_, ptr) in this.Plugin.Vfx.Spawned) {
+                unsafe {
+                    action((Vfx.VfxStruct*) ptr);
+                }
+            }
+        }
+    }
+
     private void DrawUnlocks(ref bool anyChanged, ref bool vfx) {
         this.ExtraCodeInput();
     }
diff --git a/client/Util/SemaphoreExt.cs b/client/Util/SemaphoreExt.cs
index 87c7b24..3c7ef3f 100644
--- a/client/Util/SemaphoreExt.cs
+++ b/client/Util/SemaphoreExt.cs
@@ -6,6 +6,16 @@ internal static class SemaphoreExt {
         return new OnDispose(() => semaphore.Release());
     }
 
+    internal static bool With(this SemaphoreSlim semaphore, TimeSpan timeout, out OnDispose? releaser) {
+        if (semaphore.Wait(timeout)) {
+            releaser = new OnDispose(() => semaphore.Release());
+            return true;
+        }
+
+        releaser = null;
+        return false;
+    }
+
     internal static async Task<OnDispose> WithAsync(this SemaphoreSlim semaphore, CancellationToken token = default) {
         await semaphore.WaitAsync(token);
         return new OnDispose(() => semaphore.Release());
diff --git a/client/Vfx.cs b/client/Vfx.cs
index 355b63a..f01a71b 100644
--- a/client/Vfx.cs
+++ b/client/Vfx.cs
@@ -133,6 +133,12 @@ internal unsafe class Vfx : IDisposable {
         // update rotation
         vfx->Rotation = new Quaternion(rotation.X, rotation.Y, rotation.Z, rotation.W);
 
+        // set alpha and colours from config
+        vfx->Red = Math.Clamp(this.Plugin.Config.SignRed / 100, 0, 100);
+        vfx->Green = Math.Clamp(this.Plugin.Config.SignGreen / 100, 0, 100);
+        vfx->Blue = Math.Clamp(this.Plugin.Config.SignBlue / 100, 0, 100);
+        vfx->Alpha = Math.Clamp(this.Plugin.Config.SignAlpha / 100, 0, 100);
+
         // remove flag that sometimes causes vfx to not appear?
         vfx->SomeFlags &= 0xF7;
 
@@ -176,6 +182,18 @@ internal unsafe class Vfx : IDisposable {
 
         [FieldOffset(0x248)]
         public byte SomeFlags;
+
+        [FieldOffset(0x260)]
+        public float Red;
+
+        [FieldOffset(0x264)]
+        public float Green;
+
+        [FieldOffset(0x268)]
+        public float Blue;
+
+        [FieldOffset(0x26C)]
+        public float Alpha;
     }
 }