If you’re hoping to use your site title and tagline as the text to replace the logo, you can use the Divi Booster Plugin to do so, and then all you need is a tiny bit of CSS code to hide the logo. This pulls in the site title and tagline from your general settings...
Plugins
How to change the colour of Bloom signup form success icon in Divi
If you are using Bloom with your Divi theme, you can choose much of your signup form styling from withing the settings for each signup. But you may want to change the colour of the success 'check mark' icon to match your website's design. Use the following CSS snippet...