Tier 2Tier 2 · Android: tokens only. This is a stock Material 3 element, coloured by a darkColorScheme built from the token graph. It is not a build instruction.primary → --yellow-solid · surface → --app-bg · outline → --border · error → --red-solid
SnackbarSnackbarstock · do not build
Transient confirmation with at most one action. 4dp corner, not 28dp: a snackbar is not a sheet. It pushes the FAB up rather than covering it.
Transfer addedUndo
With actionone action, never two
Folder renamed to 2026-Q1
No actionnothing to undo
height48dp minimum
corner4dp
surface--component-bg-active
label14sp --text
action--yellow-text-secondary, --fw-medium
FABlifts to 160dp while shown
Do not. Give a snackbar two actions, a 28dp corner, or leave it under the FAB. It is transient chrome, not a dialog.
Contract: platforms/android/DESIGN.md