decodeSvg returns straight alpha

src/pixie/fileformats/svg.nim

@@ -236,6 +236,7 @@ proc decodeSvg*(data: string): Image =
     result = newImage(width, height)
     for node in root:
       result.draw(node, ctxStack)
+    result.toStraightAlpha()
   except PixieError as e:
     raise e
   except:

tests/test_svg.nim

@@ -19,7 +19,5 @@ for file in files:
     image = decodeSvg(original)
     gold = readImage(&"tests/images/svg/{file}.png")
 
-  image.toStraightAlpha()
-
   doAssert image.data == gold.data
   #image.writeFile(&"tests/images/svg/{file}.png")