[TYPO3-english] transparent png appears with white background

[J. Bakshi]

Dear list,

Transparent png appears with white background and I have already tested with all possible
configuration at localconf.php without any luck. If I directly check the png from browser
it appears correctly. But through typo3 it comes with a white background.

This is typo3 4.5.16 with imagemagik 6.X and following are my latest localconf.php for image manipulation

```````````````````
$TYPO3_CONF_VARS['GFX']['im_combine_filename'] = 'composite';   // Modified or inserted by TYPO3 Install Tool.
$TYPO3_CONF_VARS['GFX']['im_version_5'] = 'im6';        // Modified or inserted by TYPO3 Install Tool.
$TYPO3_CONF_VARS['GFX']['im_stripProfileCommand'] =  '';
$TYPO3_CONF_VARS['GFX']['TTFdpi'] = '92';       // Modified or inserted by TYPO3 Install Tool.
$TYPO3_CONF_VARS['GFX']['gdlib_2'] = '1';       // Modified or inserted by TYPO3 Install Tool.
$TYPO3_CONF_VARS['GFX']['thumbnails_png'] = '1';        //  Modified or inserted by TYPO3 Install Tool.
$TYPO3_CONF_VARS['GFX']['gdlib'] = '1'; // Modified or inserted by TYPO3 Install Tool. 
$TYPO3_CONF_VARS['GFX']['im_no_effects'] = '0'; //  Modified or inserted by TYPO3 Install Tool.
$TYPO3_CONF_VARS['GFX']['im_mask_temp_ext_gif'] = '0';  /
$TYPO3_CONF_VARS['GFX']['im_v5effects'] = '1';  // Modified or inserted by TYPO3 Install Tool. 
$TYPO3_CONF_VARS['GFX']['im_negate_mask'] = '1';        // Modified or inserted by TYPO3 Install Tool. 
$TYPO3_CONF_VARS['GFX']['im_imvMaskState'] = '1';       // Modified or inserted by TYPO3 Install Tool. 
`````````````````````````

Can anyone suggest any clue please ?

Thanks