The Textures Window is used to add or remove model textures (aka, materials) You may also modify the reflective properties of the texture. Select Edit Textures from the View Window's Groups menu.
The combo box at the top of the window contains the names of all textures associated with this model. You can select a texture name and use the lighting buttons (Ambient, Diffuse, Specular, Emissive, and Shininess) to adjust the reflective properties of the texture.
To add a new texture click the New button and select a file. The file dialog box will show you which image file formats are supported. You should select an image with dimensions that are a power of 2 (ie, 32x32, 128x256, etc...). Other sizes should work with Misfit, but may not work with other rendering engines.
To remove a texture from the model, select the texture name in the combo box and click the Delete button (this only removes the texture from the model, the actual file on disk is not modified in any way).
To rename a texture click the Rename button. This may be useful if you want the texture name to match a group name, or if you have two textures with the same image but different lighting values. Names do not need to be unique (though duplicate names may be confusing for other people using this model).
Press Ok to keep your changes or press Cancel to ignore any changes.
For more details on changing lighting values for a texture, see the RGBA Window and the Shininess Window.
For details on how to apply a texture to the model, see the Group Window and the Texture Coordinates Window.