In order to make simple changes on your design and customize it in accordance with your branding colors and style:
In your project, go to the "Designs" tab and under the picture click on "Edit in Design Manager".
From there you can select your Logo and change settings for font, text color and background color.
If you wish to customize your design in a more advanced way, you can edit with our Figma plugin by clicking on "Try Figma Plugin". Check out the following article for more details: Connecting Cropink with Figma.