(if you're using apache), check that the LimitRequestBody directive isn't
set too low (it's optional, so it may not be there at all).
+process_links: follow redirects and save all available file information
+ (mimetype, date, size, oembed, etc.). Defaults to true.
file_quota: maximum size for a single file upload in bytes. A user can send
any amount of notices with attachments as long as each attachment
is smaller than file_quota.
sslpath: if this and the sslserver are specified, this path will be used
when creating HTTPS URLs. Otherwise, the attachments|path value
will be used.
+show_thumbs: show thumbnails in notice lists for uploaded images, and photos
+ and videos linked remotely that provide oEmbed info. Defaults to true.
+show_html: show (filtered) text/html attachments (and oEmbed HTML etc.).
+ Doesn't affect AJAX calls. Defaults to false.
+filename_base: for new files, choose one: 'upload', 'hash'. Defaults to hash.
group
-----
notify: an array of URLs for ping endpoints. Default is the empty
array (no notification).
-design
-------
-
-Default design (colors and background) for the site. Actual appearance
-depends on the theme. Null values mean to use the theme defaults.
-
-backgroundcolor: Hex color of the site background.
-contentcolor: Hex color of the content area background.
-sidebarcolor: Hex color of the sidebar background.
-textcolor: Hex color of all non-link text.
-linkcolor: Hex color of all links.
-backgroundimage: Image to use for the background.
-disposition: Flags for whether or not to tile the background image.
-
notice
------