XWiki 7.2+

 We have adopted the "nested pages" paradigm. It means that you will no longer find the "space" concept in the UI.

Instead, each page has now the ability to have children pages, except if it is marked as "Terminal". See the Content Organization page for more details.

To see the children of a page, you need to go to the "more actions" menu (represented with 3 vertical dots). Then you will see a LiveTable where you can filter and sort the different children in the list. It also provides the ability to edit, rename or delete these pages.

XWiki 9.8-+

• less/custom.less
  • This file allows custom skins to easily add their own styling. Use the templates customisation technique to override the file and add your own LESS code. 
  • Styling can also be added using Style Sheet Extensions (SSX) or in the "advanced" section of a Flamingo Theme. Each method has it's advantages and disadvantages, so choose the method you prefer:
    • SSX objects can have multiple options for visibility (local, global, on demand);
    • Flamingo Theme customisations need an active theme in order to be visible;
    • changes added in the Skin (through "less/custom.less") are applied before any Theme and any SSX object. This is important because of the cascade specificity, but also because it means that the code you write in "custom.less" applies for multiple Themes, so you don't need to duplicate the code in case you use multiple Themes and also you don't need to make sure the SSX is called or has a specific visibility;
    • all methods support LESS and CSS, but the SSX objects need to explicitly state the content type;
    • "custom.less" and the "advanced" section support only LESS and CSS, while SSX objects can be parsed and allow also Velocity code. Other Skin templates and files can be overwritten to support Velocity (like style.less.vm or *.vm).