The specific steps to modify the color of the annotation title bar are as follows:
1. Open the note application of the mobile phone and click the icon in the upper right corner to enter;
2. Select a color in the opened page;
3. After returning to the editing interface, you will find that the title bar of the note has changed to the specified color;
4. The set color is only valid for the note currently being edited. In other words, a modification is only valid for one note;
5. The color of the post-it note will be displayed in the post-it note list, behind the post-it note title (note that the color is small).