Click on your video to watch it.
Player page will be opened in new tab.
Click on "Admin settings".
Now you can see your page setting and use the customize design the way you like your page to be.
Click "save" button.
That is it.
Example for page designs
This is our dark theme for Helnix Channel.
Note: If you create a new design and you want to go back to our default design, just click "Restore to default system design"