Use strings as ConsoleColor if no System.Drawing

Author: dahlbyk

src/AnsiUtils.ps1

@@ -25,15 +25,17 @@ $ColorTranslatorType = 'System.Drawing.ColorTranslator' -as [Type]
 $ColorType = 'System.Drawing.Color' -as [Type]
 
 function Get-VirtualTerminalSequence ($color, [int]$offset = 0) {
-    if (($color -is [ConsoleColor]) -and ($color -ge 0) -and ($color -le 15)) {
-        return "${AnsiEscape}$($ConsoleColorToAnsi[$color] + $offset)m"
-    }
     if ($color -is [byte]) {
         return "${AnsiEscape}$(38 + $offset);5;${color}m"
     }
-    if ($ColorTranslatorType -and ($color -is [String])) {
+    if ($color -is [String]) {
         try {
-            $color = $ColorTranslatorType::FromHtml($color)
+            if ($ColorTranslatorType) {
+                $color = $ColorTranslatorType::FromHtml($color)
+            }
+            else {
+                $color = [ConsoleColor]$color
+            }
         }
         catch {
             Write-Debug $_
@@ -42,6 +44,9 @@ function Get-VirtualTerminalSequence ($color, [int]$offset = 0) {
     if ($ColorType -and ($color -is $ColorType)) {
         return "${AnsiEscape}$(38 + $offset);2;$($color.R);$($color.G);$($color.B)m"
     }
+    if (($color -is [ConsoleColor]) -and ($color -ge 0) -and ($color -le 15)) {
+        return "${AnsiEscape}$($ConsoleColorToAnsi[$color] + $offset)m"
+    }
     return "${AnsiEscape}$($AnsiDefaultColor + $offset)m"
 }