What aspect of graphic design can be challenging when using computers?

The manipulation of color schemes can be challenging in graphic design when using computers, particularly due to the complexity of color theory and the variety of tools available for color editing. Designers must have a deep understanding of concepts such as hue, saturation, brightness, and the psychological impact of color. They also face challenges in ensuring color consistency across different devices and mediums because colors can appear differently on screens versus printed materials. This inconsistency necessitates careful calibration and testing, adding to the difficulty when working digitally.

Additionally, the digital environment offers a plethora of software options that can handle color manipulation, but mastering these tools and knowing how to create aesthetically pleasing color combinations can be daunting for many designers. This complexity in achieving the desired effect often leads to frustration and requires significant skill development, making color manipulation a notable challenge in graphic design using computers.