Refactor item details backdrop handling

src/themes/appletv/theme.css

@@ -252,6 +252,10 @@ a[data-role=button] {
     background: none;
 }
 
+.noBackdropTransparency .detailPageSecondaryContainer {
+    background-color: #d5e9f2;
+}
+
 .detailTableBodyRow-shaded:nth-child(even) {
     background: #f8f8f8;
     background: rgba(0, 0, 0, 0.1);

src/themes/blueradiance/theme.css

@@ -243,6 +243,12 @@ a[data-role=button] {
     background: none;
 }
 
+.noBackdropTransparency .detailPageSecondaryContainer {
+    background: url(bg.jpg) center top no-repeat #033361;
+    background-size: cover;
+    background-attachment: fixed;
+}
+
 .detailTableBodyRow-shaded:nth-child(even) {
     background: #1c1c1c;
     background: rgba(30, 30, 30, 0.9);

src/themes/dark/theme.css

@@ -225,6 +225,10 @@ html {
     background: none;
 }
 
+.noBackdropTransparency .detailPageSecondaryContainer {
+    background-color: #101010;
+}
+
 .listItem-border {
     border-color: rgba(34, 34, 34, 0.9) !important;
 }

src/themes/light/theme.css

@@ -257,6 +257,10 @@ a[data-role=button] {
     color: inherit;
 }
 
+.noBackdropTransparency .detailPageSecondaryContainer {
+    background-color: #f2f2f2;
+}
+
 .detailTableBodyRow-shaded:nth-child(even) {
     background: #f8f8f8;
 }

src/themes/purplehaze/theme.css

@@ -326,6 +326,12 @@ a[data-role=button] {
     background: none;
 }
 
+.noBackdropTransparency .detailPageSecondaryContainer {
+    background: url(bg.jpg) center top no-repeat #030322;
+    background-size: cover;
+    background-attachment: fixed;
+}
+
 .detailTableBodyRow-shaded:nth-child(even) {
     background: #1c1c1c;
     background: rgba(30, 30, 30, 0.9);

src/themes/wmc/theme.css

@@ -228,6 +228,12 @@ a[data-role=button] {
     background: none;
 }
 
+.noBackdropTransparency .detailPageSecondaryContainer {
+    background: linear-gradient(to bottom, #0f3562, #1162a4, #03215f);
+    background-color: #0f3562;
+    background-attachment: fixed;
+}
+
 .detailTableBodyRow-shaded:nth-child(even) {
     background: #1c1c1c;
     background: rgba(0, 0, 0, 0.3);