Customize login screen
This is a good exercise to get introduced to the IMS built-in Content Management System (CMS). Like with any other CMS you will be able edit HTML content with a "What You See Is What You Get (WYSIWYG)" HTML editor. To modify the login screen go to Content ⇒ Content Items and click on the Home content item.
To change the logo, first select the logo by clicking the logo one time with your left mouse button. Then click the button from the toolbar to change the logo image properties. Change the Image URL if you know the file name otherwise use the icon to select an image from the product database, media library or from your local hard-drive.
To edit the login screen text simply click the text inside the HTML editor and start typing. Use the toolbar features to format text.