fix discovery cmp_labels

plot/discovery/discovery.view.tree

@@ -4,14 +4,17 @@ $mpds_visavis_plot_discovery $mol_view
 	elementals_on? /
 	show_setup true
 	discovery_click? null
+	colorset /
+		\#3e3f95
+		\#c00
 	sub /
 		<= Plot $mpds_visavis_plotly
 			data <= data *
 			layout <= layout *
 			subscribe_events <= subscribe_events null
 		<= Cmp_legend $mpds_visavis_plot_legend_cmp
-			first_cmp_label? <= first_cmp_label? \
-			second_cmp_label? <= second_cmp_label? \
+			labels <= cmp_labels /
+			colorset <= colorset
 		<= Setup $mol_view
 			sub /
 				<= Elementals $mol_labeler

plot/discovery/discovery.view.ts

@@ -232,17 +232,15 @@ namespace $.$$ {
 			const elementals_on = this.elementals_on()
 
 			const first = Discover_item({points: json.payload.points, name: json.answerto})
-			this.first_cmp_label( first.name )
-
+
 			const second = json_cmp ? Discover_item({points: json_cmp.payload.points, name: json_cmp.answerto}) : undefined
-			this.second_cmp_label( second?.name )
 
 			const result = discover(elementals_on, first, second)
 
 			const traces = [];
 
 			for (let i = 0; i < result.length; i++){
-				const dscolor = (i == 0) ? '#3e3f95' : '#900'
+				const dscolor = this.colorset()[ i ]
 				const oflag = (i == 0) ? 1 : 0.9
 				traces.push({
 					x: result[i].discovery.map((item: any) => item[0] ),
@@ -258,6 +256,11 @@ namespace $.$$ {
 			return traces
 		}
 
+		@ $mol_mem
+		cmp_labels() {
+			return this.json_cmp() ? [ this.json().answerto, this.json_cmp().answerto ] : []
+		}
+
 	}
 
 }