Though the initial announcement of the series drew mixed reactions, Batman Beyond went on to receive critical acclaim and a cult following. The show is said to explore the darker side of many Batman projects, playing on key elements such as emotions, personal relations, fear of the unknown, as well as cyberpunk and sci-fi themes such as the issues and dilemmas of innovation and technological and scientific progress affecting society, and the psychology of the character of Bruce Wayne. As such, it was considerably darker than most other children’s programs at the time, although producer Bruce Timm recalls it was conceived as a kid-friendly Batman cartoon. It is also the first Batman series to portray the hero as a teenager.
Line art or line drawing is any image that consists of distinct straight or curved lines placed against a (usually plain) background, without gradations in shade (darkness) or hue (color) to represent two-dimensional or three-dimensional objects. Line art can use lines of different colors, although line art is usually monochromatic.
Line art emphasizes form and outline, over color, shading, and texture. However, areas of solid pigment and dots can also be used in addition to lines. The lines in a piece of line art may be all of a constant width (as in some pencil drawings), of several (few) constant widths (as in technical illustrations), or of freely varying widths (as in brush work or engraving).