Manual:$wgThumbUpright

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Thumbnail settings: $wgThumbUpright
Scaling factor applied to width of images when parameter 'upright' is used.
Introduced in version: 1.11.0 (r22305)
Removed in version: still in use
Allowed values: decimal
Default value: 0.75
Other settings: Alphabetical | By function

Details[edit]

This is a scaling factor applied to image thumbnails when the 'upright' parameter is used. The user's preferred thumbnail width is multiplied by this scaling factor.

This allows a nicer look for upright (portrait) images without the need to specify a hardcoded pixel width in the page markup. The scaled images' widths will be rounded to the nearest 10 pixels for cache health.

For example, assume File:Portrait.jpg has dimensions 400×800. User X's preference is to see thumbnails that are 300px wide. When User X views [[File:Portrait.jpg|thumb|upright]], he or she will see a thumbnail of width (300 × $wgThumbUpright). By default that would be (300 × 0.75) = 225 pixels wide.