amir tohidlo

Safe Headers Scanner helps WordPress administrators identify common issues that may cause header-related problems. 
The plugin scans installed themes and plugins for: 
* Unnecessary whitespace before <code><?php</code> tags 
* Extra whitespace after closing <code>?></code> tags 
* Direct output (e.g., <code>echo</code>, <code>print</code>) before headers are sent
Results are displayed in a clear report, so you can review and fix potential issues easily.

Safe Headers Scanner

Scan themes and plugins for potential header issues such as whitespace before/after PHP tags or direct output before headers.

Andy Fragen

Remove default header images and load custom header images from ‘The Headers’ page. Allows for easy selection of random header images in your theme.
A plugin that should be able to remove default headers for a theme and add custom headers based upon the article written by <a href="http://juliobiason.net/2011/10/25/twentyeleven-with-easy-rotating-header-images/" rel="nofollow ugc">Julio Biason</a> who was inspired by <a href="http://wpti.ps/?p=107" rel="nofollow ugc">wpti.ps</a>.
Create a Page named The Headers. Then upload header images (media files) to the the page. The page may have a visibility of private. All images displayed on the page will be parsed, those attached to the page and those added via image blocks.
Once the custom header images are loaded, just go to <code>Appearance > Header</code> or <code>Customize > Header Image</code> and select <code>Randomize suggested headers</code>.
The plugin will display an error notice if there is not a page titled, The Headers.

Add Custom Header Images

Remove default header images and load custom header images from 'The Headers' page. Allows for easy selection of random header images in your theme.

Safe Headers Scanner vs Add Custom Header Images