Change a theme and make it the default in Outlook or Access.How to Enable Dark Theme for Office Word/Excel/PowerPoint/Outlook
Your browser does not support video. To change the background color and design of all your Office programs, go to File > Options > General > Office Theme. Starting from Microsoft Outlook , you can change Outlook’s Office background theme from the drop down menu in Outlook Change Microsoft Office Color Theme. Changing the Color Theme in Office , including Outlook , Word, Excel, was not possible until.