use rounded image corners (TODO: allow disabling this)

ui/browsing/albumpage.go

@@ -231,6 +231,7 @@ func NewAlbumPageHeader(page *AlbumPage) *AlbumPageHeader {
 	a.ExtendBaseWidget(a)
 	a.cover = widgets.NewImagePlaceholder(myTheme.AlbumIcon, 225)
 	a.cover.OnTapped = func(*fyne.PointEvent) { go a.showPopUpCover() }
+	a.cover.CornerRadius = theme.InputRadiusSize()
 
 	a.titleLabel = widget.NewRichTextWithText("")
 	a.titleLabel.Truncation = fyne.TextTruncateEllipsis

ui/browsing/artistpage.go

@@ -503,6 +503,7 @@ func NewArtistPageHeader(page *ArtistPage) *ArtistPageHeader {
 	}
 	a.artistImage = widgets.NewImagePlaceholder(myTheme.ArtistIcon, 225)
 	a.artistImage.OnTapped = func(*fyne.PointEvent) { a.showPopUpCover() }
+	a.artistImage.CornerRadius = theme.InputRadiusSize()
 	a.favoriteBtn = widgets.NewFavoriteButton(func() { go a.toggleFavorited() })
 	a.playBtn = widget.NewButtonWithIcon(lang.L("Play Discography"), theme.MediaPlayIcon(), func() {
 		go a.artistPage.pm.PlayArtistDiscography(a.artistID, false /*shuffle*/)

ui/browsing/nowplayingpage.go

@@ -110,6 +110,7 @@ func NewNowPlayingPage(
 	pm.OnStopped(doFmtStatus)
 
 	a.card = widgets.NewLargeNowPlayingCard()
+	a.card.ImageCornerRadius = theme.InputRadiusSize()
 	a.card.OnAlbumNameTapped = func() {
 		contr.NavigateTo(controller.AlbumRoute(a.nowPlaying.Metadata().AlbumID))
 	}

ui/browsing/playlistpage.go

@@ -328,6 +328,7 @@ func NewPlaylistPageHeader(page *PlaylistPage) *PlaylistPageHeader {
 
 	a.image = widgets.NewImagePlaceholder(myTheme.PlaylistIcon, 225)
 	a.image.OnTapped = func(*fyne.PointEvent) { go a.showPopUpCover() }
+	a.image.CornerRadius = theme.InputRadiusSize()
 	a.titleLabel = util.NewTruncatingRichText()
 	a.titleLabel.Segments[0].(*widget.TextSegment).Style = widget.RichTextStyle{
 		SizeName: theme.SizeNameHeadingText,