Fade the grid view out when downloading posts

src/qml/danbooruimageview.qml

@@ -46,10 +46,12 @@ Rectangle {
     }
 
     onDownloadFinished: {
+        grid.opacity = 1
         runningIndicator.running = false
     }
 
     onDownloadStarted: {
+        grid.opacity = 0.5
         runningIndicator.running = true
     }
 
@@ -124,6 +126,7 @@ Rectangle {
                             iconName: "view-preview"
                             visible: opacity > 0
                             opacity: 0
+                            tooltip: i18n("View in image viewer")
 
                             anchors.top: parent.top
                             anchors.left: parent.left
@@ -152,6 +155,7 @@ Rectangle {
                             iconName: "download"
                             visible: opacity > 0
                             opacity: 0
+                            tooltip: i18n("Download image")
 
                             anchors.bottom: parent.bottom
                             anchors.left: parent.left
@@ -237,6 +241,13 @@ Rectangle {
                 NumberAnimation  { property: "opacity"; from: 0; to: 1; duration: 250}
             }
 
+            Behavior on opacity {
+
+                NumberAnimation {
+                    duration: 200
+                }
+            }
+
         }
     }