Add Custom Code
Open the "Add Custom Code" panel in the Custom Player Dashboard.
You can add custom CSS to override existing styles in the Player. Use your browser's inspector tool to identify the classes you'd like to customize and paste them into "Custom CSS" form, where you'll be able to change existing properties or add new ones.
Here, we are setting the play button text to be italicized.
Your changes will automatically be reflected on the player preview on the right.
Once you are done adding custom code to your player, click the "Save Changes" button.