You can post your screenshot by posting screenshot to free image hosting sites ( like imgur )
Regarding the “color” of the text section, the “color” you are referring to is actually the background image that is set for the section. Also, it is not an available theme feature to change the image of the section.
While the request can be achieved with some theme customization, the customization is beyond the scope of this support forum, that is bug fixing and minor support / fixes. For advanced customization specific to your site please consider Hiring a professional customizer, which will help you customize and add additional theme features as per your requirements.
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