Use the Layers Manager to control the properties for each Layer.
All drawing entities, such as Lines or Circles, have several properties. Some of the properties like Layer, LineColor, LineStyle, LineWeight, and transparency are common to all entities.
Each Layer has LineColor, LineStyle, and LineWeight properties. Anything you sketch on the Layer adopts the Layer's properties unless you explicitly set a LineColor, LineStyle, or LineWeight other than those of the active Layer.
When you start a new drawing, new Layers are automatically assigned the color white. When you create a new Layer, the Layer adopts the color of the selected Layer.
Entities you draw on the Layer appear in the assigned Layer color except those to which you assign a color with the LineColor command.
To set Layer LineColors:
The LineColor for the Layer is set. When you change the color, all entities on the Layer that were sketched with the color designated as ByLayer appear with the changed color. Entities on the Layer that were sketched with a color other than the ByLayer color are not affected.
To set Layer LineStyles:
The LineStyle for the Layer is set. When you change the LineStyle, all entities on the Layer that were sketched with the LineStyle designated as ByLayer appear with the changed LineStyle. Entities on the Layer that were sketched with a LineStyle other than the ByLayer LineStyle are not affected.
When you change the LineWeight, all entities on this Layer that were sketched with the LineWeight designated as ByLayer appear with the changed LineWeight. Entities on the Layer that were sketched with a LineWeight other than the ByLayer LineWeight are not affected.
To set Layer LineWeights:
The LineWeight for this Layer is set.
Note: To display the LineWeights, enable LWEIGHT on the status bar.
When you change the transparency, all entities on the Layer that you created with the transparency designated as ByLayer appear with the specified transparency. Entities on the Layer that you created with a transparency other than ByLayer are unaffected.
To set Layer transparency:
The transparency for the Layer is set.
In complex drawings, with a large number of layers, you can add a relevant description to increase the clarity of the drawing.
To add Layer descriptions:
Access
Command: Layer
Menu: Format > Layer
Layers Palette: Layers Manager