This theme component allows you to show topic thumbnails in topic list views.
Optimized images are generated for the lists, and different resolutions are made available for high-dpi displays. Images are lazy-loaded as you scroll (where native browser support is available).
By default Discourse will use the first image in the OP of the topic. If you would like to select a different image from the OP, add
|thumbnail to the markdown. For example
![alttext|100x100](upload://aaa) ![alttext|100x100|thumbnail](upload://bbb) << this one will be the thumbnail
There are three modes, configurable per-category using the theme settings:
And list mode: