On the View menu, click Layer Properties.
For the layer you want to color, select the check box in the Color column.
In the Layer Color list, click a color name.
To make the layer transparent, move the Transparency slider to the value you want.
A value of 100% makes the layer invisible; a value of 0% makes the layer opaque.
The color is assigned to the layer on the current page.
Note: The color and transparency you assign to shapes on a layer temporarily override each shape's original color and transparency. Turn off the layer color to return each shape to its original color. Shapes assigned to more than one layer use their original color, rather than the layer color. Layer colors appear in both the displayed drawing and the printed drawing.