I thought the theme is linked with XML file but later I cheked that it is not like this.
The issue is that in the front-page of the web is configured with a default image that is taken from the image gallery. I need to change this image for a video. I am working with a child theme and I want to change the code and in the DevepTool of Chrome I saw that the code with which it is embedded is the following image:
<img src="https://localhost/Cover/wp-content/uploads/2018/01/Fondo_web_freepik.com_.jpg" alt="Fondo_web" draggable="false">
The issue is that I am not able to locate this code in the php files to change it and include the code to embed the video. I tried to find it with TextCrawler programm but it was not possible.
Excuse me, I am beginning in WordPress developer world.
Thanks in advance.