Fix various template warnings (#32)

- Missing :
- Deprecated =
- Not valid color name
- Must always return statement

data/magic-future-flip.mse-style/style

@@ -691,7 +691,7 @@ extra card style:
 		visible: { card.pt_2 != "" }
 		render style: image
 		image: { flip_ptbox2() }
-	paintbrush
+	paintbrush:
 		right: { 353 - card_style.illustrator.content_width }
 		top : 478
 		width: 40