[Mahara-contributors] [Bug 1532642] Re: Remove old thumb.png files

[Robert Lyon]

** Changed in: mahara
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1532642

Title:
  Remove old thumb.png files

Status in Mahara:
  Fix Committed

Bug description:
  In 15.10 we switched to using fontawesome icons to display the icons
  for blocktypes. Prior to that, we relied on a file called "thumb.png"
  under each blocktype's image directory (or under the corresponding
  directory in the theme).

  Through an oversight, we left these images in place in Mahara 15.10.
  In 15.10.0 they were basically useless. In 15.10.1, after the patch
  for Bug 1510421, they become potentially useful because we began
  providing both the FontAwesome icon name *and* the thumb.png path to
  view/blocktypelist.tpl, so a third-party theme could in theory start
  using them if they wanted to use all .png files for the block picker
  rather than CSS icons.

  However, since we're no longer using these icons in the core themes,
  they are likely to fall out of support, so we should probably just
  delete theme from core.

  If we do this:

  1. Third-party plugins can still provide a thumb.png file (for
  backwards-compatibility with older plugins, or for plugins that have
  no suitable icon in FontAwesome)

  2. Third-party theme developers can still provide their own thumb.png
  files for the core blocktypes if they wish. They'll just need to place
  them under their own theme directory (i.e.
  /theme/CUSTOMTHEME/plugintypes/blocktype/clippy/images/thumb.png)

  So it won't have any effect on what third-party devs can do. It'll
  just remove some unused and unmaintained image files from the core
  Mahara distribution.

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