Additional settings / "Theme" tab ([Setup] menu)

Theme

Looks of Tera Term can be changed.
It is not a Windows theme (dark theme, etc.) setting.

Theme Editor

Open Theme editor.

FastSizeMove

Faster drawing by omitting drawing of the window background (BG theme) during window resizing, moving, and Z-order changes.
This can be used when using the BG theme.

Startup

Sets the theme to be used at startup.

no use

No theme is used

Fixed theme file

Loads a specific theme file

Random Theme file

Randomly load themes from theme files folder

Susie Plug-in path

Path where plugin file is stored.
Susie Plug-in is an external file to load various image files using mage viewer software Susie.
Following information was referenced.

• Susie NO HEYA / Susie NO download
  PLUG_API.TXT file in https://www.digitalpad.co.jp/~takechin/archives/splug004.lzh
• Susie plugin API definition file
• TORO's Library / TORO's Software library(Win32/Win64 Plugin)