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Closes #1010: Make pngmath images transparent by default; IE7+ should handle it.

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This commit is contained in:
Georg Brandl
2012-10-28 19:06:48 +01:00
parent 20e5574c54
commit 0c02841412
3 changed files with 9 additions and 13 deletions
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17
doc/ext/math.rst
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@@ -148,19 +148,12 @@ built:
.. confval:: pngmath_dvipng_args
Additional arguments to give to dvipng, as a list. The default value is
``['-gamma 1.5', '-D 110']`` which makes the image a bit darker and larger
then it is by default.
``['-gamma', '1.5', '-D', '110', '-bg', 'Transparent']`` which makes the
image a bit darker and larger then it is by default, and produces PNGs with a
transparent background.
An arguments you might want to add here is e.g. ``'-bg Transparent'``,
which produces PNGs with a transparent background. This is not enabled by
default because some Internet Explorer versions don't like transparent PNGs.
.. note::
When you "add" an argument, you need to reproduce the default arguments if
you want to keep them; that is, like this::
pngmath_dvipng_args = ['-gamma 1.5', '-D 110', '-bg Transparent']
.. versionchanged:: 1.2
Now includes ``-bg Transparent`` by default.
.. confval:: pngmath_use_preview