From the Construction Plane Editor window, choose Canvas > Canvas General Info, or click the icon at the bottom of the Canvas Layer Editor.
Click the Mask Color to open the Color Editor.
To change the color for the selection marquee, click the Marquee Color to open the Color Editor.
In the Color Editor, do any of the following to select a color:
Pick a color model and adjust the sliders, or enter numeric values.
Click in the color wheel or triangle, or pick a color from the Most Recent Colors swatch.
Click in the Color Blender.
Click in the Color Swatches.
Click the Color Picker icon (eye dropper) and then click anywhere on your screen to grab that color.
To change the colors in the Color Blender, set the current color (for example, using the RGB or HSV sliders) and then click a corner square in the Color Blender.
To store the current color in the Color Swatches, drag the current color swatch to a Color Swatches square.
The Current Color Palette updates with the new color. The in the Canvas General Information window also updates.
To change the mask display opacity for mask layers, select the Mask Display Opacity value, type a new opacity value and press .
To change the opacity for the selection marquee, select the Marquee Display Opacity value, type a new opacity value and press .
To interactively adjust the opacity value, click and drag the opacity slider.
In the Canvas Layer Editor window, click the icon for the mask layer.
In the Canvas Layer Editor window, click the icon for the mask layer.