Some customization tasks require you to edit items in the style sheet, or create a new style sheet.
The style sheets are found in the gbc-project-dir/customization/customization-project-dir/sass directory.
You can edit styles directly in the gbc-project-dir/customization/customization-project-dir/sass/customization.scss file, or you can create a new style sheet.
If you create a new style sheet, you must add a reference to that style sheet in the customization.scss file. For example, if you create a file called MyStyles.scss, add the following in the customization.scss file:
@import "MyStyles";