2.0

• Configurable HUD slots
  each column independently selectable from Speed, HR, Power, Cadence, Avg Power, Normalized Power, or Grade; per-slot zone color mode
• Four-column HUD
  optional 4th column for an extra metric at a glance
• New fields: Cadence (instant, 3 s, 5 s, 10 s), Average Power, Normalized Power, Grade (EWMA smoothing, α=0.15, ~6 s time constant)
• Grade coloring
  gradient palette with Wahoo, Garmin, and Hammerhead styles
• Rendering overhaul
  Glance removed; pure RemoteViews with IBM Plex Sans Condensed headers, native font-size lookup, and correct value centering