As you can see in the above screenshots, while there is option of Windows Phone 8.1 kind of Tiles transparency there are two options to fine tune Tiles transparency in case of full background”. You can make it less or more translucent.
Again, it seems like Microsoft is closely monitoring feedback and responding appropriately. Windows 10 for Phones is again proving to be a big update over Windows Phone 8.1 and the way Microsoft is overhauling the whole OS, it augurs well for the future.
You can read most comprehensive coverage of Windows 10 for Phones at our dedicated page.