>> works for me after moving the `\special{background White}` inside the
>> preview environment
For the simple example this is possible but for my actual application I can
only give some latex code that is added to the preamble of a template (which
comes before the preview environment). Thanks for the suggestion.
> The proper way to get it into every output file is by using
>
> \AtBeginDvi{\special{background White}}
Indeed this does the trick. Thanks.
As a follow-up, I tried to change the colour of the text instead of the
background. When I use `\AtBeginDvi{\special{color Blue}}` something
interesting happens. The `stderr` from `dvisvgm` is
```
pre-processing DVI file (format version 2)
processing page 1
graphic size: 59.060989pt x 16.642173pt (20.757564mm x 5.849055mm)
output written to
build/html/_images/math/a2e9efdc082dc472f41adfa3b55cc10fffca955e.svg
1 of 1 page converted in 0.23648 seconds
```
while when I use `\AtBeginDvi{\special{background White}}` the `stderr` is
```
pre-processing DVI file (format version 2)
processing page 1
computing extents based on data set by preview package (version 13.1)
width=59.060989pt, height=11.814414pt, depth=4.827759pt
graphic size: 59.060989pt x 16.642173pt (20.757564mm x 5.849055mm)
output written to
build/html/_images/math/d5d00c07920b38bf8e74010aca212d30f5cf0e99.svg
1 of 1 page converted in 0.225224 seconds
```
Now, `imgmath` (a Sphinx extension) relies on this `stderr` in order to extract
the `depth` value and in the former case it is missing, so vertical correction
is not applied (later on) which doesn’t look nice. Clearly this is related to
`dvisvgm` however in its documentation (under the dgisvgv/ps section) it is
stated that “… the preview package with option tightpage.” is used to get a
bounding box. And I wonder whether this has anything to do with the preview
package?
Thanks,
Mitko
