Thanks for checking it out. Yeah we do have quite a backlog of issues to work through. Obviously we prioritize bugs and the most popular feature requests. Feel free to submit an issue any time you want though! It may be that we can help come up with a workaround that gets you what you want. Otherwise sometimes if its an easy change one of the devs will knock it out quickly. But if nothing else it’ll be there for other people to react to. :)
Hey thanks! I think you mean Thunder. :-) Thunderbird is a mail client from Mozilla (also a great app lol).
If you have a bug or feature request to report, you can create an issue on GitHub. https://github.com/thunder-app/thunder
If you just want to have a discussion with the devs and other community members, you can check out our Matrix. https://matrix.to/#/#thunderapp:matrix.org