None results in an uninitialized image (that happens to be transparent
most of the time); we want to explicitly initialize the image to
transparent.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
New bot avatars are generated with this tool. Having the avatars generated,
we can run generate-integration-docs-screenshot to generate the doc
screenshots.
Fixes: #17792
Fixes#2665.
Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.
Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start. I expect this change will increase pressure for us to split
those files, which isn't a bad thing.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Avatar images for bots used by the tool to generate integration
documentation screenshots are pre-generated and committed to the repository.
The `generate-integration-docs-screenshot` tool now uses these images,
instead of trying to create these avatar images on the fly.
Also, deleted the unused `create_png_from_svg` function.
