diff --git a/demo/client.ts b/demo/client.ts
index 6419e50e..eb4e92a9 100644
--- a/demo/client.ts
+++ b/demo/client.ts
@@ -248,10 +248,7 @@ function initOptions(term: TerminalType): void {
     // Internal only options
     'cancelEvents',
     'convertEol',
-    'handler',
-    'screenKeys',
     'termName',
-    'useFlowControl',
     // Complex option
     'theme',
     'windowOptions'
diff --git a/src/Types.d.ts b/src/Types.d.ts
index aa30c98f..e304ddc1 100644
--- a/src/Types.d.ts
+++ b/src/Types.d.ts
@@ -219,10 +219,7 @@ export interface ITerminalOptions extends IPublicTerminalOptions {
   [key: string]: any;
   cancelEvents?: boolean;
   convertEol?: boolean;
-  handler?: (data: string) => void;
-  screenKeys?: boolean;
   termName?: string;
-  useFlowControl?: boolean;
 }
 
 export interface IBrowser {
diff --git a/src/common/services/OptionsService.ts b/src/common/services/OptionsService.ts
index 7a0832c4..94462ec9 100644
--- a/src/common/services/OptionsService.ts
+++ b/src/common/services/OptionsService.ts
@@ -49,9 +49,7 @@ export const DEFAULT_OPTIONS: ITerminalOptions = Object.freeze({
 
   convertEol: false,
   termName: 'xterm',
-  screenKeys: false,
   cancelEvents: false,
-  useFlowControl: false,
   windowOptions: {},
   wordSeparator: ' ()[]{}\',"`'
 });
diff --git a/src/common/services/Services.ts b/src/common/services/Services.ts
index 4258f0fc..74d264d7 100644
--- a/src/common/services/Services.ts
+++ b/src/common/services/Services.ts
@@ -279,9 +279,7 @@ export interface ITerminalOptions {
   [key: string]: any;
   cancelEvents: boolean;
   convertEol: boolean;
-  screenKeys: boolean;
   termName: string;
-  useFlowControl: boolean;
   windowOptions: IWindowOptions;
 }
 
diff --git a/src/public/Terminal.ts b/src/public/Terminal.ts
index 4f70e347..c96af698 100644
--- a/src/public/Terminal.ts
+++ b/src/public/Terminal.ts
@@ -146,10 +146,8 @@ export class Terminal implements ITerminalApi {
     this._core.paste(data);
   }
   public getOption(key: 'bellSound' | 'bellStyle' | 'cursorStyle' | 'fontFamily' | 'fontWeight' | 'fontWeightBold' | 'logLevel' | 'rendererType' | 'termName' | 'wordSeparator'): string;
-  public getOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'disableStdin' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell'): boolean;
-  public getOption(key: 'colors'): string[];
+  public getOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'disableStdin' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'visualBell'): boolean;
   public getOption(key: 'cols' | 'fontSize' | 'letterSpacing' | 'lineHeight' | 'rows' | 'tabStopWidth' | 'scrollback'): number;
-  public getOption(key: 'handler'): (data: string) => void;
   public getOption(key: string): any;
   public getOption(key: any): any {
     return this._core.optionsService.getOption(key);
@@ -159,10 +157,8 @@ export class Terminal implements ITerminalApi {
   public setOption(key: 'logLevel', value: 'debug' | 'info' | 'warn' | 'error' | 'off'): void;
   public setOption(key: 'bellStyle', value: 'none' | 'visual' | 'sound' | 'both'): void;
   public setOption(key: 'cursorStyle', value: 'block' | 'underline' | 'bar'): void;
-  public setOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'disableStdin' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell', value: boolean): void;
-  public setOption(key: 'colors', value: string[]): void;
+  public setOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'disableStdin' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'visualBell', value: boolean): void;
   public setOption(key: 'fontSize' | 'letterSpacing' | 'lineHeight' | 'tabStopWidth' | 'scrollback', value: number): void;
-  public setOption(key: 'handler', value: (data: string) => void): void;
   public setOption(key: 'theme', value: ITheme): void;
   public setOption(key: 'cols' | 'rows', value: number): void;
   public setOption(key: string, value: any): void;
diff --git a/typings/xterm.d.ts b/typings/xterm.d.ts
index e93bb98f..16e32110 100644
--- a/typings/xterm.d.ts
+++ b/typings/xterm.d.ts
@@ -910,22 +910,12 @@ declare module 'xterm' {
      * Retrieves an option's value from the terminal.
      * @param key The option key.
      */
-    getOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'disableStdin' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'screenKeys' | 'useFlowControl' | 'visualBell' | 'windowsMode'): boolean;
-    /**
-     * Retrieves an option's value from the terminal.
-     * @param key The option key.
-     */
-    getOption(key: 'colors'): string[];
+    getOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'disableStdin' | 'macOptionIsMeta' | 'rightClickSelectsWord' | 'popOnBell' | 'visualBell' | 'windowsMode'): boolean;
     /**
      * Retrieves an option's value from the terminal.
      * @param key The option key.
      */
     getOption(key: 'cols' | 'fontSize' | 'letterSpacing' | 'lineHeight' | 'rows' | 'tabStopWidth' | 'scrollback'): number;
-    /**
-     * Retrieves an option's value from the terminal.
-     * @param key The option key.
-     */
-    getOption(key: 'handler'): (data: string) => void;
     /**
      * Retrieves an option's value from the terminal.
      * @param key The option key.
@@ -967,25 +957,13 @@ declare module 'xterm' {
      * @param key The option key.
      * @param value The option value.
      */
-    setOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'disableStdin' | 'macOptionIsMeta' | 'popOnBell' | 'rightClickSelectsWord' | 'screenKeys' | 'useFlowControl' | 'visualBell' | 'windowsMode', value: boolean): void;
-    /**
-     * Sets an option on the terminal.
-     * @param key The option key.
-     * @param value The option value.
-     */
-    setOption(key: 'colors', value: string[]): void;
+    setOption(key: 'allowTransparency' | 'cancelEvents' | 'convertEol' | 'cursorBlink' | 'disableStdin' | 'macOptionIsMeta' | 'popOnBell' | 'rightClickSelectsWord' | 'visualBell' | 'windowsMode', value: boolean): void;
     /**
      * Sets an option on the terminal.
      * @param key The option key.
      * @param value The option value.
      */
     setOption(key: 'fontSize' | 'letterSpacing' | 'lineHeight' | 'tabStopWidth' | 'scrollback', value: number): void;
-    /**
-     * Sets an option on the terminal.
-     * @param key The option key.
-     * @param value The option value.
-     */
-    setOption(key: 'handler', value: (data: string) => void): void;
     /**
      * Sets an option on the terminal.
      * @param key The option key.
@@ -1333,7 +1311,7 @@ declare module 'xterm' {
      * String indicating the Unicode version provided.
      */
     readonly version: string;
-    
+
     /**
      * Unicode version dependent wcwidth implementation.
      */