Parchment-coloured, square icons relate to the creation and amending of documents:
Create a new proposal
Create a new document that is a line-by-line revision of another document (noted by the pen icon in the corner)
Document amendment proposed
Document taken from another committee (note arrow in corner)
Amendment taken from another committee
Debate a proposal
Documents that have an explicit subtype can be displayed with a slightly different icon:
Legislative text
Formal Resolutions
A message to be sent elsewhere
A petition to be considered
Rules and Orders of Business