a few more goroutines

ui/browsing/nowplayingpage.go

@@ -297,7 +297,8 @@ func (a *NowPlayingPage) onImageLoaded(img image.Image, err error) {
 	if err != nil {
 		log.Printf("error loading cover art: %v\n", err)
 	}
-	a.card.SetCoverImage(img)
+
+	fyne.Do(func() { a.card.SetCoverImage(img) })
 	if img == nil {
 		return
 	}
@@ -307,18 +308,15 @@ func (a *NowPlayingPage) onImageLoaded(img image.Image, err error) {
 		return
 	}
 
-	evenFrame := true
+	// Fyne animation starting is currently thread-safe,
+	// despite not being marked as such
+	// TODO: if this changes, use fyne.Do
 	anim := canvas.NewColorRGBAAnimation(
 		a.background.StartColor, c, 75*time.Millisecond, func(c color.Color) {
-			// reduce fps to reduce mem allocations
-			if evenFrame {
-				a.background.StartColor = c
-				a.background.Refresh()
-			}
-			evenFrame = !evenFrame
+			a.background.StartColor = c
+			a.background.Refresh()
 		})
 	anim.Start()
-
 }
 
 func (a *NowPlayingPage) updateLyrics() {