If you select a color by using the RGB or HSL screen, that color appears in the Layer List box of the Layer Properties Manager along with its three RGB numbers(see Figure 6.11).
F igu re 6 . 1 1 : The Layer List within the Layer Properties Manager with the Roof layer
assigned a color that is not part of the standard AutoCAD 255-color list
With the combination of 256 values for each of the three primary colors, you
now have more than 16 million colors to choose from in AutoCAD.
The Color Books Tab
The Color Books tab displays the colors of the selected color book (see the image
on the left side of Figure 6.12). AutoCAD has 20 color books. Each book appears
in the Color Book drop-down list at the top of the tab; the current book appears
in the box. Below that, a set of colors that corresponds to the position of the
slider is displayed in bars. Moving the slider to a new position displays another
set of colors. Click a displayed color bar to select it, and then click OK. The color
appears in the Layer Properties Manager Layer List box by its identifying name
and number (see the image on the right side of Figure 6.12).
with an assigned DIC number (right)
Later in the book you’ll create new layers and assign them colors of your
choice. For now, take this opportunity to explore the True Color and Color
Books tabs of the Select Color dialog box, and try using some of these colors in your drawing. Keep the Layer Properties Manager open. You’ll use it to assign linetypes in the next section.
You can delete selected layers by using the Delete Layer button, shaped like
a red X, in the Layer Properties Manager. You can delete only empty layers—
those containing no objects. Should you have a nonempty layer that needs to be deleted, right-click any layer in the Layer Properties Manager and choose Merge Selected Layer(s) To. This will move objects to the layer you select and delete the source layer
