what size background image works best? I have tried over 100 images and gifs, and they all get stretched, and blurry. usually 1/2 the image isn’t even viewable
You’re going to want something fairly large in dimension and in a landscape orientation (but watch out for file size too, you don’t want to force everyone to download a huge image).
For example, I accidentally took this photo of my couch. The dimensions are 1920 x 1440 and it fits my screen as a background image (text is unreadable over it, but that’s a separate issue).
Note that the image is set to background-size: cover; by default — so this means that the image will be scaled-up to fill the entire browser window without repeating the image (and likely cropped somewhat unless my window is in the same 4:3 ratio as the image). Small images will be sized up proportionately until they fit the entire window. You can change this behavior using CSS for the category, for example:
body.category-example {
background-size: 25%:
}
Now your background image is much smaller, and tiled to fill the screen.
You’ll want to work with background-size, background-repeat, and background-position in your site’s CSS to find out which properties will work for your specific image.
Can we add this tip to the UI for the feature, somewhere?
All of your CSS is controlled under admin > customize > themes, by “CSS for the category” I meant that you can target a specific category because we add CSS classes to the page when relevant.
So in the case of a category named “Other” we add the .category-other class to the page’s body tag, so you can use something like this in your general customizations to target that specific category.
body.category-other {
// your CSS for the category here
}
Qual è la dimensione consigliata per lo sfondo di una categoria, ad esempio la larghezza?
Sto anche cercando la dimensione consigliata per un’immagine di categoria.
Entrambi variano molto in base all’effetto che si desidera ottenere…
Per le immagini di sfondo… probabilmente il più ampio possibile mantenendo una dimensione del file ragionevole (diciamo forse sotto i 150k? un servizio come https://tinypng.com/ può aiutare a ridurre le dimensioni del file). Probabilmente nell’intervallo di 1440px - 1920px di larghezza…
Per i loghi/immagini delle categorie, personalmente preferisco i quadrati, intorno ai 150px… ma se stai personalizzando il layout in altro modo, praticamente qualsiasi dimensione o orientamento può funzionare bene.
Poiché questo sito presenta alcune limitazioni, a volte utilizzo https://pngquant.org/. Dispone di un eseguibile ed esegue lo stesso lavoro senza tali limitazioni; credo inoltre che utilizzi lo stesso metodo di compressione.

