layout style
Computing term referring to the visual arrangement or formatting style of elements in a document or interface.
In this software, you can configure the layout style in detail.
レイアウト is the common loanword for 'layout' in general contexts, while 割付け体裁 is a more technical, compound term specifically for layout style in computing.
Compound of 割付け (わりつけ, 'allocation' or 'layout') and 体裁 (ていさい, 'appearance' or 'format'). The exact historical derivation is uncertain; the term is used in technical computing contexts.