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hidden line
In technical drafting, a hidden line is a dashed line showing an edge that exists but is obscured from view.
Engineering drawings use line conventions: solid lines for visible edges, dashed 'hidden lines' for edges blocked by material in front of them. It is a way to convey structure you cannot directly see. Saying a component like zsec is 'drawn here in hidden line' borrows this drafting metaphor to mean it is present in the design but not fully realized or exposed yet.
See also
- honesty forkAn honesty fork is a deliberate code-path split so the software never claims to support a feature it does not truly back.
- handshakeA handshake is the opening negotiation of a secure connection where both sides agree on keys before any data flows.
- framebufferA framebuffer is the block of memory holding the image being rendered, essentially the picture that becomes the screen.