MTEXT (Command) Find:
The following options are displayed.
Puts an opaque background behind the text.
Specifies the margin around the text for the opaque background. The value is based on the text height. A factor of 1.0 exactly fits the multiline text object. A factor of 1.5 extends the background by 0.5 times the text height.
Specifies the color for the background.
Provides a background that is the same color as the background of the drawing.
Specifies a color for the opaque background. You can select one of the colors in the list or click Select Color to open the Select Color dialog box.