diff --git a/web/modals/threads/color-picker.react.js b/web/modals/threads/color-picker.react.js
index 0fe9fef4f..f22f1254e 100644
--- a/web/modals/threads/color-picker.react.js
+++ b/web/modals/threads/color-picker.react.js
@@ -1,84 +1,80 @@
 // @flow
 
 import * as React from 'react';
-import { ChromePicker } from 'react-color';
+import { type ColorResult, ChromePicker } from 'react-color';
 
 import css from '../../style.css';
 
 type Props = {|
   +id: string,
   +value: string,
   +disabled: boolean,
   +onChange: (hex: string) => void,
 |};
 type State = {|
   +pickerOpen: boolean,
 |};
-type Color = {
-  +hex: string,
-  ...
-};
 
 class ColorPicker extends React.PureComponent<Props, State> {
   props: Props;
   state: State;
 
   constructor(props: Props) {
     super(props);
     this.state = {
       pickerOpen: false,
     };
   }
 
   render() {
     let picker = null;
     if (this.state.pickerOpen && !this.props.disabled) {
       picker = (
         <div className={css['color-picker-selector']}>
           <ChromePicker
             color={this.props.value}
             onChangeComplete={this.onChangeColor}
             disableAlpha={true}
           />
         </div>
       );
     }
     const style = { backgroundColor: `#${this.props.value}` };
     return (
       <div
         className={css['color-picker-container']}
         tabIndex="0"
         onClick={this.onClick}
         onBlur={this.onBlur}
         onKeyDown={this.onPickerKeyDown}
       >
         <div className={css['color-picker-button']}>
           <div className={css['color-picker-preview']} style={style} />
           <div className={css['color-picker-down-symbol']}>▼</div>
         </div>
         {picker}
       </div>
     );
   }
 
   onPickerKeyDown = (event: SyntheticKeyboardEvent<HTMLTextAreaElement>) => {
     if (event.keyCode === 27) {
       // Esc
       this.setState({ pickerOpen: false });
     }
   };
 
-  onChangeColor = (color: Color) => {
+  onChangeColor = (color: ColorResult) => {
     this.props.onChange(color.hex.substring(1, 7));
   };
 
   onClick = () => {
     this.setState({ pickerOpen: true });
   };
 
   onBlur = () => {
     this.setState({ pickerOpen: false });
   };
 }
 
 export default ColorPicker;