Android: Calendar items set to tentative
Yay, I got myself a Samsung Galaxy SII. Great phone running Android!
There's just one thing that annoys the shit out of me: When I create a new agenda item in my google agenda, it shows up in my thunderbird as "tentative". These items will have a lower opacity, which makes the agenda harder to read.
I've google'd around, and found a lot of complaints about this problem, but there's no solution to make appointments confirmed right away. And I'm definitely not opening all items in thunderbird to confirm them by hand.
There's a simple solution to this problem: I made Thunderbird render the agenda differently. Using the file userChrome.css, I set opacity to 100%. (If you don't know what userChrome.css is, read this page at mozilla.org.) The actual CSS is:
calendar-event-box[invitation-status="TENTATIVE"],
calendar-editable-item[invitation-status="TENTATIVE"],
calendar-month-day-box-item[invitation-status="TENTATIVE"],
calendar-event-box[status="TENTATIVE"],
calendar-editable-item[status="TENTATIVE"],
calendar-month-day-box-item[status="TENTATIVE"]
{
opacity: 1 !important;
}
Restart thunderbird and you're done.
This "solution" does not set any appointments to "confirmed". It just renders tentative appointments the same as confirmed items, so that you don't see the difference anymore.© GeekLabInfo 
Thanks so much for this solution! It's good enough for me :)
Thanks - as I don't use the status function - good enough for me as well. Just one question. What calender app are you using. I'm trying to figure out if this happens with all apps or just a few?
Thanks for that great tip, it works great! I don't use either the status of my calendar events so as long as the tentative events appear similarly to the confirmed ones, it's fine for me.
For the info, I use the "Business Calendar" app on Android. I read on a different forum that it's not due to the app itself but to the Google servers: apparently, they only have 2 statuses internally - free or busy - but for compatibility reasons, they mark new events as tentative. I can't find the forum on whoch I read that but this should be checked...
AMAZING!!! I've been looking for a "fix" for this for a long time!! I don't care that it's tentative or confirmed, I just want to see my events, and I don't want them dimmed. This worked perfectly. Thank you very much!