Use banners to show errors, warnings, or important information related to an operation.
'error' to show a banner.
view( box('This server is powered by a lemon and two electrodes.', mode='info'), box("The optimizer has been optimized!", mode='success'), box('It is pitch black. You are likely to be eaten by a grue.', mode='warning'), box('Thermal levels critical. Please wait while we consult the manual.', mode='critical'), box('Operation blocked. We are testing your patience.', mode='blocked'), box('Operation failed. Something is burning.', mode='error'), )