A great way to personalize the campaign templates is with color.
To change the colors on a specific campaign, click on the paintbrush icon toward the top right corner of the campaign builder. At the bottom of the page, there is a section titled Colors.
You can either change the HEX code in each box, or click on the color swatch to open the color picker window.
Once you've made your color choices, click on the save changes button at the bottom of the page.