diff --git a/src/browser/services/RenderService.ts b/src/browser/services/RenderService.ts
index 00f3a769..b41f1ebc 100644
--- a/src/browser/services/RenderService.ts
+++ b/src/browser/services/RenderService.ts
@@ -105,13 +105,14 @@ export class RenderService extends Disposable implements IRenderService {
     // TODO: RenderCoordinator should be the only one to dispose the renderer
     this._renderer.dispose();
     this._renderer = renderer;
+    this.refreshRows(0, this._rowCount - 1);
   }
 
   private _fullRefresh(): void {
     if (this._isPaused) {
       this._needsFullRefresh = true;
     } else {
-      this.refreshRows(0, this._rowCount);
+      this.refreshRows(0, this._rowCount - 1);
     }
   }
 
@@ -122,7 +123,7 @@ export class RenderService extends Disposable implements IRenderService {
 
   public onDevicePixelRatioChange(): void {
     this._renderer.onDevicePixelRatioChange();
-    this.refreshRows(0, this._rowCount);
+    this.refreshRows(0, this._rowCount - 1);
   }
 
   public onResize(cols: number, rows: number): void {
diff --git a/src/renderer/Constants.ts b/src/renderer/Constants.ts
deleted file mode 100644
index 36ce9b07..00000000
--- a/src/renderer/Constants.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-/**
- * Copyright (c) 2017 The xterm.js authors. All rights reserved.
- * @license MIT
- */
-
-/**
- * Flags used to render terminal text properly for the old CharData format
- */
-export const enum FLAGS {
-  BOLD = 1,
-  UNDERLINE = 2,
-  BLINK = 4,
-  INVERSE = 8,
-  INVISIBLE = 16,
-  DIM = 32,
-  ITALIC = 64
-}
diff --git a/typings/xterm.d.ts b/typings/xterm.d.ts
index 042ca537..f435367d 100644
--- a/typings/xterm.d.ts
+++ b/typings/xterm.d.ts
@@ -191,7 +191,7 @@ declare module 'xterm' {
     cursor?: string,
     /** The accent color of the cursor (fg color for a block cursor) */
     cursorAccent?: string,
-    /** The selection color (can be transparent) */
+    /** The selection background color (can be transparent) */
     selection?: string,
     /** ANSI black (eg. `\x1b[30m`) */
     black?: string,