Digital imaging technologies have reshaped not only image production efficiency but also the workflows and evaluative standards of visual design. Taking Adobe Photoshop as the central case

this study uses diachronic analysis

theoretical synthesis

and case studies to examine how software functions

media environments

and cultural demands jointly influence visual styles. It traces six stages: pre-digital production

pixel editing

layer-based compositing

digital retouching

mobile-oriented flat design

and generative artificial intelligence. The study finds that technology does not directly determine style; rather

it lowers operational costs

reorganizes workflows

broadens participation

and accelerates the spread of visual conventions. Layers promoted modular compositing

retouching tools supported skeuomorphism and idealized realism

mobile media encouraged information-centered design

and generative AI transformed style into a callable and combinable resource. Accordingly

the designer's role has expanded from direct execution to problem definition

selection

constraint

ethical review

and integration.