Each tableau material contains the following fields:
1) Tableau id (string): used for referencing tableaux in other files. The prefix tab_ is automatically added before each tableau-id.
2) Tableau flags (int). See header_tableau_materials.py for a list of available flags.
3) Tableau sample material name (string).
4) Tableau width (int).
5) Tableau height (int).
6) Tableau mesh min x (int): divided by 1000 and used when a mesh is auto-generated using the tableau material.
7) Tableau mesh min y (int): divided by 1000 and used when a mesh is auto-generated using the tableau material.
8) Tableau mesh max x (int): divided by 1000 and used when a mesh is auto-generated using the tableau material.
9) Tableau mesh max y (int): divided by 1000 and used when a mesh is auto-generated using the tableau material.
10) Operations block (list): A list of operations. See header_operations.py for reference.
      The operations block is executed when the tableau is activated.

module_tableau_materials.py, some intro text here

Banners

setting banner and flag, dunde, Modding Q&A

synchronized changes for banners, Lav, Modding Q&A

banner offset, Lav, Modding Q&A

Other notes

Tableau material can use arbitrary tableau meshes, with different textures, GetAssista, Modding Q&A

Heraldic items submeshes affected too, oliver (credit), Mount & Blade Modding Discord

banner background colour array, MadVader, Modding Q&A, and _Sebastian_, Heraldic Armor issue [help]}

clickable tableaus, Somebody, Modding Q&A

character screens, The_dragon, Modding Q&A

heraldic boots, multiple discutants, Modding Q&A

gloves and boots no heraldic tableau, Somebody, Modding Q&A

No submeshes for heraldic items, NPC99, Modding Q&A

parameter tableau material, cmpxchg8b, [WB] Warband Script Enhancer v3.2.0

full helmet taken off at tableau, Somebody, Modding Q&A

Previewing tableaued meshes, mtarini, FAQ and Troubleshooting