Implement therealFoxster Dark Theme Fix

Source/Themes.xm

@@ -14,6 +14,13 @@ static BOOL oldDarkTheme() {
 }
 
 // Themes.xm - Theme Options
+// Fix navigation bar showing a lighter grey with default dark mode
+%hook YTCommonColorPalette
+- (UIColor *)brandBackgroundSolid {
+    return self.pageStyle == 1 ? [UIColor colorWithRed:0.05882352941176471 green:0.05882352941176471 blue:0.05882352941176471 alpha:1.0] : %orig;
+}
+%end
+
 // Old dark theme (gray)
 %group gOldDarkTheme
 UIColor *originalColor = [UIColor colorWithRed:0.129 green:0.129 blue:0.129 alpha:1.0];