WordPress Developer Needed to Add Favicon to My WordPress Website

I need an experienced web designer/developer to help me add a favicon to my existing WordPress website. The website was built by a previous developer who used a custom-built theme, and the dashboard does not look like the standard WordPress dashboard I am familiar with. I have tried to locate where I can upload or change the favicon myself, but I have not been able to find the right settings. I am looking for someone who understands WordPress custom themes and can identify the correct way to add the favicon without affecting the existing website design or functionality. *What I need:* - Add my favicon to the website. - Identify where the favicon is controlled within the custom theme or website settings. - Ensure the favicon displays correctly in browser tabs. - Check that the changes do not affect the existing website layout or functionality. This should be a small task for someone with the right WordPress development experience. I would appreciate a developer who can explain briefly where the favicon is managed so I can update it myself in the future if needed. Please share your experience working with custom WordPress themes and let me know how you would approach this task.