map: fade live-mode node markers more so overlaps stay see-through

src/features/map/types.ts

@@ -110,7 +110,10 @@ export const PACKET_FLOW_HOP_MS = 480; // ms the dot takes to cross one hop segm
 export const PACKET_FLOW_FLASH_MS = 900; // a crossed node's flash decays back to dim over this
 export const PACKET_FLOW_TRAIL_FADE_MS = 1000; // the dashed trail fades once the dot reaches the end
 export const PACKET_FLOW_MAX = 120; // cap on concurrent packet animations (busy-feed guard)
-export const LIVE_DIM_OPACITY = 0.18; // idle individual-node opacity while Live mode is on
+// Idle individual-node opacity while Live is on. Kept low because with clustering off, co-located
+// markers overlap and their alphas composite toward bright; a crossed node still pops to full via
+// the max(dim, feature-state glow) expression.
+export const LIVE_DIM_OPACITY = 0.08;
 // Clusters dim further: many overlapping semi-transparent hexagons composite toward opaque, so a
 // dense cluster field stops being see-through. A lower per-cluster alpha keeps the stack translucent.
 export const LIVE_CLUSTER_DIM_OPACITY = 0.07;