diff --git a/.earthlyignore b/.earthlyignore
index fb70c40..c772d93 100644
--- a/.earthlyignore
+++ b/.earthlyignore
@@ -1,5 +1,6 @@
 # ignore output (because we put stuff there)
 /output/*
+/Modules/*
 assemblies/
 # ignore binary output files and folders
 bin/
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 710be69..3b02c89 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -26,7 +26,7 @@ jobs:
 
     - name: earthly +push
       if: github.ref == 'refs/heads/main'
-      run: earthly --push --secret NUGET_API_KEY= --secret PSGALLERY_API_KEY --strict +all
+      run: earthly --push --secret NUGET_API_KEY --secret PSGALLERY_API_KEY --strict +all
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}
diff --git a/Earthfile b/Earthfile
index 838bf38..be64206 100644
--- a/Earthfile
+++ b/Earthfile
@@ -13,8 +13,7 @@ ARG --global TEMP_ROOT=/temp
 # These are my common build args, used in my shared /Tasks repo
 ARG --global MODULE_NAME=Pansies
 ARG --global CONFIGURATION=Release
-# ARG --global PSMODULE_PUBLISH_KEY
-# ARG --global NUGET_API_KEY
+
 
 worker:
     # Dotnet tools and scripts installed by PSGet
diff --git a/Source/Pansies.psd1 b/Source/Pansies.psd1
index 1eb281b..c043657 100644
--- a/Source/Pansies.psd1
+++ b/Source/Pansies.psd1
@@ -49,7 +49,7 @@ FunctionsToExport = @()
 CmdletsToExport = @('New-Text', 'New-Hyperlink', 'Write-Host', 'Get-Gradient', 'Get-Complement', 'Get-ColorWheel')
 
 # Variables to export from this module
-# VariablesToExport = '*'
+VariablesToExport = 'RgbColorCompleter'
 
 # Aliases to export from this module, for best performance, do not use wildcards and do not delete the entry, use an empty array if there are no aliases to export.
 AliasesToExport = 'Text', 'Url'
@@ -137,5 +137,6 @@ PrivateData = @{
     # Minimum version of the Windows PowerShell engine required by this module
     PowerShellVersion       = '5.1'
     CompatiblePSEditions    = @('Core','Desktop')
+
 }
 
diff --git a/Source/Private/_init.ps1 b/Source/Private/_init.ps1
index d1da7ae..f101d61 100644
--- a/Source/Private/_init.ps1
+++ b/Source/Private/_init.ps1
@@ -1,5 +1,10 @@
 using namespace PoshCode.Pansies
+using namespace PoshCode.Pansies.Palettes
+using namespace System.Collections.Generic
+using namespace System.Collections
 using namespace ColorMine.ColorSpaces
+using namespace System.Management.Automation
+using namespace System.Management.Automation.Language
 
 # On first import, if HostPreference doesn't exist, set it and strongly type it
 if (!(Test-Path Variable:HostPreference) -or $null -eq $HostPreference) {
@@ -19,11 +24,32 @@ if(Get-Command Add-MetadataConverter -ErrorAction Ignore) {
     }
 }
 
-$xlr8r = [psobject].assembly.gettype("System.Management.Automation.TypeAccelerators")
-@{
+$Accelerators = @{
     "RGBColor" = [PoshCode.Pansies.RgbColor]
     "Entities" = [PoshCode.Pansies.Entities]
-}.GetEnumerator().ForEach({
+}
+
+# IArgumentCompleterFactory only available on PS7+
+if ("System.Management.Automation.IArgumentCompleterFactory" -as [type]) {
+    Add-Type @"
+using System.Management.Automation;
+using PoshCode.Pansies.Palettes;
+namespace PoshCode.Pansies {
+    public class ColorCompleterAttribute : ArgumentCompleterAttribute, IArgumentCompleterFactory {
+        public ColorCompleterAttribute(){}
+        public IArgumentCompleter Create() {
+            return new X11Palette();
+        }
+    }
+}
+"@ -ReferencedAssemblies ([psobject].Assembly), ([PoshCode.Pansies.RgbColor].Assembly), "netstandard" -CompilerOptions "-NoWarn:1701"
+
+    $Accelerators["ColorCompleterAttribute"] = [PoshCode.Pansies.ColorCompleterAttribute]
+
+}
+
+$xlr8r = [psobject].assembly.gettype("System.Management.Automation.TypeAccelerators")
+$Accelerators.GetEnumerator().ForEach({
     $Name = $_.Key
     $Type = $_.Value
     if ($xlr8r::AddReplace) {
@@ -41,4 +67,22 @@ $xlr8r = [psobject].assembly.gettype("System.Management.Automation.TypeAccelerat
         }
         throw
     }
-})
\ No newline at end of file
+})
+
+$script:X11Palette = [X11Palette]::new()
+$RgbColorCompleter = {
+    param($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameters)
+    $script:X11Palette.CompleteArgument($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameters)
+}
+
+$global:PansiesColorCompleterRegistration = Register-EngineEvent -SourceIdentifier PowerShell.OnIdle {
+    foreach ($command in Get-Command -ParameterType RgbColor) {
+        foreach ($parameter in $command.Parameters.Values.Where{ $_.ParameterType -eq [RgbColor] }) {
+            Register-ArgumentCompleter -CommandName $command.Name -ParameterName $parameter.Name -ScriptBlock $RgbColorCompleter
+        }
+    }
+    Stop-Job $global:PansiesColorCompleterRegistration # This removes the event
+    Remove-Variable PansiesColorCompleterRegistration -Scope global
+}
+
+Export-ModuleMember -Variable RgbColorCompleter -Function *-* -Cmdlet * -Alias *