How to change the first slide in Quarto presentation?

I need to insert the title of my presentation in the first slide inside a textbox in such a way that the background does not compromise the reading of the text.

Let me share my yml here..

---
title: "``Predictive Models``"
subtitle: "``Last update:`` ```r format(Sys.time(), '%d %B, %Y')```"
title-slide-attributes:
    data-background-image: "https://github.com/rhozon/datasets/raw/master/capa_ppt_Felipe.png"
    data-background-size: contain
    data-background-opacity: "number"
format:
  revealjs:
    slide-number: true
    chalkboard: 
      buttons: true
    preview-links: auto
    css: styles.css
    footer: <https://www.brf-global.com/>
---

I don´t know how to make it...