Dark mode getting enhanced for Microsoft Word

Microsoft is putting efforts to develop the dark mode in Word even darker. It has started testing an update to Word that will color entire documents in a dark canvas. A future update to Word will include the ability to switch the canvas into dark mode, too.
Currently, Word has a dark mode that modifies the ribbon and toolbars, but the canvas stays bright white. There will be a Switch Modes button in the Word ribbon to change between a dark and light canvas, and options in Word to permanently disable the dark canvas, too.
The new Word dark mode update is similar to what currently exists in OneNote. It has options to switch between a dark and light canvas. This darker mode is currently available to beta testers of Office 365. Hence, it is expected to roll out to Word users soon.