How to change the title background of all components on the website to the same?

How to change the title background of all components on the website to the same? The operation method is as follows:

Click \"Theme\"---\"\"Change background\"---》\"Component title background\", here you can set the background color of all titles to be the same, or you can change the title of all components Change to the same picture background, click \"Custom\"---\"\"Upload\", and then choose whether this background image scrolls with the webpage, choose the tile mode, tile position, and choose the background size. After setting, click Save after clicking. That is, it is saved to the background of the website. If you want to display it in the front of the website, you need to click the \"Publish\" button in the upper right corner of the page.