How do I adjust the brightness of the Glyph Interface? July 09, 2024 02:18 Updated Go to Settings > Glyph Interface and slide the bar to adjust brightness. Related articles How do I turn the Glyph Interface on/off? How do I choose the Glyph Interface for ringtones? How do I restrict apps from using network data in the background? How do I choose the Glyph Interface for ringtones? How do I record on the Phone?