Add a dedicated section on where spacing is resolved (Spacing.yaml ->
per-site spacing.yaml -> tx_t3b_spacing) and why a spacing fix in the
custom SCSS partial silently disables the editor-facing field: the
utility class it emits is (0,1,0) and loses to any contextual rule.
Also covers the first/last-position leak into container columns, the
fact that the system has no notion of "has a background" (so seemingly
contradictory spacing complaints are two different cases), when SCSS is
still the right tool (per-column, not per-element), and how to verify
from the emitted markup instead of the rendering.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
melnicenkoandClaude Opus 5
674fbc9e46