.tsn and .scn file thumbnails ( previews) are not displayed

:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By AgasferLukich

Hello. Please tell me why .tsn and .scn file thumbnails ( previews) are not displayed? (Previews of textures, materials and meshes are displayed.)
![editor screenshot ][1]

:bust_in_silhouette: Reply From: magicalogic

In the script after the line extends BaseClass, add the line:

classname YourClassName, "res://path/to/svg/icon"