I understand that custom logos are a big request by LastPass users, but I would have thought that at least the sites that have automated adding to the vault should have icons that appear.
Atlassian does have an icon that appears, however Bitbucket (a service of Atlassian) does not appear with an icon in the vault. It is added automatically, and is recognized by your service. I believe I saw an icon in the app when it added Bitbucket to the vault, but the icon does not appear in the vault. It appears that this is therefore not a case of not having an icon, but that the referencing of it is not correct in the vault itself.
Please, please, please add the ability to use custom icons too.