notify-send

hint

• Syntax: TYPE:NAME:VALUE
• Types
• boolean
• int
• double
• string
• byte
• variant

notify-send "Brightness" \
  --hint string:x-dunst-stack-tag:brightness \
  --hint int:value:40 \

urgency

• Urgency
• low
• normal
• critical

notify-send \
  --urgency normal \
  "Brightness"

icon

• Icon filename or stock icon

notify-send \
  --icon "display-brightness-high-symbolic" \
  "Brightness"

expire-time

notify-send \
  --expire-time 1600 \
  "Brightness"