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Important Skins and Color Schemes

we need to control color, if you go to brand the panel it will work only with light colors of logo, it not working dark color background and dark color logo
 
When I try to install the extension, it gives me "Can not find client 'admin'" (see attached). My plesk login name is not admin. Perhaps this is the cause of this bug? Despite this error, it seems to have installed and there are only two skins that look almost identical. Are there other skins available? I was looking for a way to skin the webmail. Is this possible?
 

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  • Skins and Colours cannot find client admin.jpg
    Skins and Colours cannot find client admin.jpg
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@finbarr69 thank you for letting us know about the installation error. The Skins and Color Schemes extension is a bit outdated and currently does not serve much purpose.

Plesk does not have any themes for webmail. However depending on which webmail solution your are using (Sogo, Roundcube or Horde) you can probably find themes for those offered elsewhere if you search for them. I know that there are quite some themes for Roundcube available (for purchase).
 
The issue @finbarr69 has mentioned still persists after more than a year.

When you change the default admin username to anything else and then try to install the extension, you'll receive an error and only ONYX and OBSIDIAN themes will be available.

25-09-09_03-00-12_lcFkO.png

Changing the username back to "admin" and reinstalling the extension does NOT help.

I would love to apply a skin to differentiate between my Plesk instances. Please fix this!

Here's the error message when you restore Plesk from a backup:
WARNING: (Restore server object '') Failed to install the extension heavy-metal-skin: The execution of post-install.php has failed with the following message:
[2025-09-05 04:18:03.060] 105290:68ba647b0dd8b ERR [panel] Execution branding_theme has failed with exit code 4, stdout: , stderr: Can not find client 'admin'
:
0: /opt/psa/admin/plib/pm/ApiCli.php:343
pm_ApiCli::filterResult(string 'branding_theme', integer '4', string '', string 'Can not find client 'admin'
', integer '5')
1: /opt/psa/admin/plib/pm/ApiCli.php:333
pm_ApiCli::execWithPipes(string 'branding_theme', string '/opt/psa/admin/bin/php -f '/opt/psa/admin/plib/api-cli/branding_theme.php' -- '-i' '-vendor' 'admin...', integer '5', array, string '')
2: /opt/psa/admin/plib/pm/ApiCli.php:73
pm_ApiCli::call(string 'branding_theme', array)
3: /opt/psa/admin/plib/modules/heavy-metal-skin/library/SkinsManager.php:173
Modules_HeavyMetalSkin_SkinsManager::installSkins()
4: /opt/psa/admin/plib/modules/heavy-metal-skin/scripts/post-install.php:21
ERROR: pm_Exception_ResultException: Execution branding_theme has failed with exit code 4, stdout: , stderr: Can not find client 'admin'
(ApiCli.php:343)
 
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