Method:

1. Right-click the color settings.

2. Click to change the font color.

3. Select the original color (black) and you can change it back.

How to change QQ font:

1. Open any QQ chat window.

2. Click the "Font Selection Tool" on the toolbar, you can see that the font color cannot be set.

3. Next, please click the "Bubble Settings" button.

4. The "Change Appearance" dialog box pops up, switch to the "Colorful Bubbles" tab, and you can see that "Chat using colorful bubbles" is checked by default.

5. Uncheck "Use colorful bubbles to chat".

6. Return to the QQ window and click the "Color" button on the toolbar.

7. Set the font color of QQ and you can modify it.