In the Theme Editor you can customize several elements on your login page including logotype, primary color, right side banner, and color schema.
To customize your login page:
-Navigate to the Customization tab
-Click Customize to open the theme editor
-Make sure Log-in Page is selected and options will be displayed for logotype, primary color, etc.
-Edit the Logotype by uploading your logo
-Click on Primary Color to edit the link and button color
-Edit the Right Side Banner by uploading an image
-Set the Color Schema to Light or Dark
-Click Save to finalize all changes