For example, differences in cost, appearance, color, durability, flexibility and reaction to extreme weather conditions can be found in the many types of plastics available. The structure of a sign also contributes to its effectiveness. Pole covers and cantilevered construction help portray an attractive message. Graphic elements of sign design. Graphic elements of design include layout of the message, colors, lettering, shape, symbolism, harmony, and daytime versus nighttime lighting conditions.
Legibility is a test of good design.
If your sign is well designed, it will be easy to read. Legibility means that the letters or characters on the sign are distinct from one another. Some color combinations of background and letters give excellent legibility while others are very poor. To test your sign's legibility, drive past your business and see if you can read it from a distance. Look at it both day and night.