feat: Easier gradient stacking ( Fixes #21 )

Author: StartAutomating

Gradient.types.ps1xml

@@ -46,20 +46,44 @@ return "$($this.CSS)"
 param()
 # Get our gradient type
 $gradientTypes = $this.GradientTypes
+
+$gradientStack = @()
+
 $gradientValues = @(foreach ($in in $this.input) {
+    if ($in.pstypenames -eq 'gradient') {
+        $gradientStack += $in
+        continue
+    }
     if ($in -notmatch $this.GradientTypePattern) {
         $in
     }
 })
 
-if (-not $gradientTypes) { $gradientTypes = 'radial-gradient'}        
-@(foreach ($gradientType in $gradientTypes) {
-    "$gradientType($(
-        @(
-            $gradientValues     
-        ) -join (', ' + [Environment]::NewLine + (' ' * 2))
-    ))"
-}) -join ', '
+if ($gradientValues) {
+    if (-not $gradientTypes) { $gradientTypes = 'radial-gradient'}
+    $gradientCss = @(foreach ($gradientType in $gradientTypes) {
+        "$gradientType($(
+            [Environment]::NewLine + (' ' * 2) + 
+            $(
+                @(
+                    $gradientValues     
+                ) -join (', ' + [Environment]::NewLine + (' ' * 2))
+            )
+        ))"
+    }) -join ', '    
+}
+if ($gradientStack) {
+    $deepJoiner = (', ' + [Environment]::NewLine)
+    if (-not $gradientValues) {
+        $gradientStack -join $deepJoiner
+    } else {
+        @($gradientStack;$gradientCss) -join $deepJoiner
+    }
+} elseif ($gradientValues) {
+    $gradientCss
+}
+
+
                     </GetScriptBlock>
       </ScriptProperty>
       <ScriptProperty>