diff --git a/src/controllers/analytic_controller.ts b/src/controllers/analytic_controller.ts
index 346a9db..8348f9e 100644
--- a/src/controllers/analytic_controller.ts
+++ b/src/controllers/analytic_controller.ts
@@ -34,9 +34,9 @@ export class AnalyticController {
   private _newAnalyticUnit: AnalyticUnit = null;
   private _creatingNewAnalyticType: boolean = false;
   private _savingNewAnalyticUnit: boolean = false;
-  private _tempIdCounted = -1;
-  private _graphLocked = false;
-  private _currentColorIndex = 0;
+  private _tempIdCounted: number = -1;
+  private _graphLocked: boolean = false;
+  private _currentColorIndex: number = 0;
 
   private _statusRunners: Set<AnalyticUnitId> = new Set<AnalyticUnitId>();
 
diff --git a/src/models/analytic_unit.ts b/src/models/analytic_unit.ts
index 6d22321..301e19a 100644
--- a/src/models/analytic_unit.ts
+++ b/src/models/analytic_unit.ts
@@ -3,9 +3,7 @@ import { SegmentArray } from './segment_array';
 import { Segment, SegmentId } from './segment';
 import { Metric } from './metric';
 
-import { ANALYTIC_UNIT_COLORS } from '../colors';
 import _ from 'lodash';
-import { AnalyticController } from 'controllers/analytic_controller';
 
 
 export type AnalyticSegmentPair = { anomalyType: AnalyticUnit, segment: AnalyticSegment };
@@ -31,7 +29,6 @@ export class AnalyticUnit {
   private _status: string;
   private _error: string;
   private _metric: Metric;
-  private _color: string;
 
   private _alertEnabled?: boolean;