also use a mask for major trait images

While it doesn't look as ugly if you have a major trait with a thick
black border, it still looks a bit off, especially since some of them do
come with the proper alpha channel, while others don't.

This fix uses the same mask for all major traits now as well, which
should make them look more uniform and remove the thick black border.

1 files changed, 0 insertions, 0 deletions

diff --git a/src/major_trait_mask.png b/src/major_trait_mask.png
new file mode 100644
index 0000000..1b9abf2
--- /dev/null
+++ b/src/major_trait_mask.png