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I want to override lib/web/mage/gallery/gallery.less and some module files in

lib/web/mage/gallery/module/*.less

I need to override them because I want to change the style of product gallery images.

How to override or Are there any other way to "settle the question"?

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We can override the less file lib in our custom theme. Put this file under web folder:

app/design/frontend/{Vendor}/{Theme}/web/mage/gallery/gallery.less

and add mage/gallery/gallery in PROJECT/dev/tools/grunt/configs/themes.js (or PROJECT/dev/tools/grunt/configs/local-themes/themes.js for magento 2.2) to make grunt compiling it as well.

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  • Thanks you for answer, but I try it, seem it not work. I had already remove cache and static files, deploy again, It didn't work. – Mr Tim Nov 26 '16 at 14:06
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    You should read more: magento.stackexchange.com/questions/110164/… – Khoa TruongDinh Nov 26 '16 at 16:24
  • Thanks a lot! But I read a check it agian, They are only work with less files in lib/web/css/source. Can you please help me check again? – Mr Tim Nov 26 '16 at 18:07
  • @MrTim you should try app/design/frontend/{Vendor}/{Theme}/web/css/source/lib/mage/gallery/gallery.less – Khoa TruongDinh Nov 28 '16 at 7:28
  • Thanks in advanced. I had try it, when I deploy it said that: Compilation from source: /app/design/frontend/{Vendor}/{theme_name}/web/css/source/lib/mage/gallery/gallery.less Compilation from source: frontend/{Vendor}/{theme_name}/en_US/css/source/lib/mage/gallery/gallery.less Unable to get content for 'frontend/{Vendor}/{theme_name}/en_US/css/source/lib/mage/gallery/module/_variables.less' – Mr Tim Nov 28 '16 at 9:31
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In your custom config file for Grunt add path to gallery file: 'mage/gallery/gallery' along with 'css/styles-m' and 'css/styles-l'

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