Select a mesh that has the Physique modifier applied to it. > Modify panel > Bulge sub-object level > Bulge rollout > Display group > Click Display Options.
This dialog lets you customize how Physique displays bulge angles at the Bulge sub-object level.

Sides—Specifies the number of sides the bulge angle envelope displays in the viewports. Default=4.
Scale—Specifies the scale of envelope display in the viewports. Default=1.1.
Default Color—Click to change the bulge angle envelope color in viewports.
Selected Cross Sections—The check box toggles the display of selected cross sections. Default=on.
Click the color swatch to change the color of selected cross sections displayed in viewports.
Selected Control Points—The check box toggles the display of selected control points. Default=on.
Click the color swatch to change the color of selected control points displayed in viewports.
Orientation Bar—The check box toggles the display of the orientation bar. Default=on.
Click the color swatch to change the color of the orientation bar displayed in viewports.
Note: The orientation bar is displayed in the viewports when the Bulge Editor is open.
Profile—The check box toggles the display of the profile. Default=on.
Click the color swatch to change the color of the profile displayed in viewports.
Note: The bulge profile displays in the viewports when the Bulge Editor is open.