Joomla! Template AT Chess - Item Support

Hi,
In css/custom.css I can change the background-colour white on top-bar in the center part behind the email-address and the social media icons.
How can I change the white colour to the left and to the right next to this on top-bar only, without changing the whole body colour! So that everything on top-bar that is white now, will be changed in another colour.
Best regards,
Hi,
You can find the site URL in "my purchased item".
Many thanks for your help in advance.
Best regards,
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Item Name:
AT Chess
Author:
Downloads:
178
Sales:
38
Created:
2018-09-20
Updated:
2023-06-07
Item Version:
4.0.0
Supported Joomla:
Joomla 4 Product
$29.00 $21.75
Regular License
This item may be used for a single domain only.
$39.00 $29.25
Extended License

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