I'm adding a couple of buttons to an already-existing NavigationController. The two buttons are added to a UIView, which is pushed onto the NavigationItem. The buttons stop and reload a UIWebView.

Problem is that there's a slight offset issue that is making it all look pretty ugly. I wish I could set the UIToolbar to transparent or clear background but that doesn't seem to be an option. Can't seem to use negative offsets either. I've got color matching, but if you look closely there's 1px or 2px of highlighting up top that's causing a visual mismatch and then a slight offset at the bottom.

Some relevant code below (based on this, inbound Googlers). What are my options to resolve this?

    // create a toolbar for the buttons
    UIToolbar* toolbar = [[UIToolbar alloc]
                          initWithFrame:CGRectMake(0, 0, 100, 45)];
    [toolbar setBarStyle: UIBarStyleDefault];   
    UIColor *colorForBar = [[UIColor alloc] initWithRed:.72 green:0 blue:0 alpha:0];
    toolbar.tintColor = colorForBar;
    [colorForBar release];

    //[toolbar setTranslucent:YES];

    // create an array for the buttons
    NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:3];

    // create a standard reload button
    UIBarButtonItem *reloadButton = [[UIBarButtonItem alloc]
                                   initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
                                   target:self
                                   action:@selector(reload)];
    reloadButton.style = UIBarButtonItemStyleBordered;
    [buttons addObject:reloadButton];
    [reloadButton release];

    // create a spacer between the buttons
    UIBarButtonItem *spacer = [[UIBarButtonItem alloc]
                               initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace
                               target:nil
                               action:nil];
    [buttons addObject:spacer];
    [spacer release];

    // create a standard delete button with the trash icon
    UIBarButtonItem *stopButton = [[UIBarButtonItem alloc]
                                     initWithBarButtonSystemItem:UIBarButtonSystemItemStop
                                     target:self
                                     action:@selector(stopLoading)];
    stopButton.style = UIBarButtonItemStyleBordered;
    [buttons addObject:stopButton];
    [stopButton release];

    // put the buttons in the toolbar and release them
    [toolbar setItems:buttons animated:NO];
    [buttons release];

    // place the toolbar into the navigation bar
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]
                                              initWithCustomView:toolbar];
    [toolbar release];