Manual:$wgResponsiveImages

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Thumbnail settings: $wgResponsiveImages
Define si mostrar o no imágenes de alta calidad para pantallas de alta resolución de PPP
Introducido en la versión:	1.21.0 (Gerrit change 24115; git #Id80ebd0)
Eliminado en la versión:	aún se usa
Valores permitidos:	(booleano)
Valor predeterminado:	`true`
Otras configuraciones: Alfabéticamente \| Por Función

Detalles

Define si mostrar o no imágenes de alta calidad para pantallas de alta resolución de PPI.

Esto está dirigido principalmente a navegadores de tabletas y computadoras de escritorio y portátiles más nuevas, como la MacBook Pro con pantalla Retina. On these high-DPI devices, raster images appear blurry or pixelated by default without special treatment.

When generating thumbnail images, thumbnails are rendered not only at the requested size, but at 1.5x and 2x the requested size. The HTML5 srcset attribute is included on the img specifying these larger images for the appropriate display densities.

Native support for the srcset attribute was first added to WebKit browsers in August 2013 and has since been adopted by most modern browsers, now (as of 2020) reaching over 94% of users globally.

Limitaciones conocidas

This code applies only to images created through Linker:

article thumbnails (1.21+)
file: page detail displays (1.23+)
image galleries (1.25+)
the imageinfo API (1.36+)

Display densities

Currently (as of 1.39) the densities used (1.5x and 2x) are hardcoded and not configurable. 1x is the implied default density of the main image.