You can center the text, change the text color, or use an added font.

Alternatively, you can right-click the text layer in the Layers menu and select Convert to Shape.

Points will appear and select your text outline.

None is represented by the white box with a diagonal line running through.

To change the size, click the line icon and set the thickness. You can also manually input the size in pixels beside the thickness presets.

To change the size, click the line icon and set the thickness. You can also manually input the size in pixels beside the thickness presets.

If needed, you can resize the image or change the background color.

If needed, you can resize the image or change the background color.