Backgrounds and edges throughout the applications and workspace should be consistent to communicate the same visual message about material and lighting.
- The backgrounds and edges throughout the interface are designed to represent the look of very high quality paper (e.g. card stock); light in weight but familiar, purposeful and substantial.
- The background of application windows is fully opaque.
- The background of plasmoids - panels and widgets on the desktop - is (barely) translucent.
- Edges are sharp and distinct. Corners are sharp but non-threatening; ~2px or 3px corner radius.
- When designing with the visual design color set,
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