How do I adjust the brightness of the Glyph Interface? August 01, 2024 02:32 Updated Go to Settings > Glyph Interface and slide the bar to adjust brightness. Related articles How do I choose the Glyph Interface for ringtones? How do I turn the Glyph Interface on/off? How do I adjust the brightness of the Glyph Interface? How do I choose the Glyph Interface for notifications? How do I adjust the Glyph light for ringtones?