[gtk: 17/60] broadway: Correct handling of opaque colors

[Matthias Clasen <matthiasc src gnome org>]

commit a97ea17c926c80b16e18485e4fee034fda9e7544
Author: Alexander Larsson <alexl redhat com>
Date:   Wed Aug 26 12:18:28 2020 +0200

    broadway: Correct handling of opaque colors
    
    If alpha is 255, we use rgb() instead of rgba(), not if alpha is 0.
    This makes the title bar gradient go from fully transparent to blue
    rather than black to blue..

 gdk/broadway/broadway.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gdk/broadway/broadway.js b/gdk/broadway/broadway.js
index 21554546c2..dcbe42f8d1 100644
--- a/gdk/broadway/broadway.js
+++ b/gdk/broadway/broadway.js
@@ -396,7 +396,7 @@ TransformNodes.prototype.decode_color = function() {
     var g = (rgba >> 8) & 0xff;
     var b = (rgba >> 0) & 0xff;
     var c;
-    if (a == 0)
+    if (a == 255)
         c = "rgb(" + r + "," + g + "," + b + ")";
     else
         c = "rgba(" + r + "," + g + "," + b + "," + (a / 255.0) + ")";