Congrats on this fresh theme, this is the first full functional MyBB 1.9 like 
Being in the test phase I have some questions:
1. Why the famous Rin Editor plugin is not compatible with Curves UI? If I choose Rin editor from the theme settings / Editor Style, the editor bar looks like this. All the other styles work well.
L.E. Solved
2. How to permanently remove the red moderation notice on index: "Awaiting Moderation: x unread reports, x unapproved threads, x unapproved posts and x unapproved attachments." ?
3. How can I replace the default black background in header with a custom image?
I solved adding a logo in header by adding on header template:
but for replacing the black bar with a custom image I have no solution, except removing this entire row from header template and losing the Portal feature:
4. All the unread threads in forums or PM's are shown without bold, like the read ones so it's impossible to distinguish the unread threads. How to bold all the unread threads & PM's in a way to figure out that I have unread posts inside? Maybe I messed something up in global CSS when I changed the colors of the forum...
5. When updating to new versions all my custom modifications in terms of global CSS (custom theme colors) and templates will be reverted to the original ones?
6. When watching the threads in a forum I see no last post button, in order to point me to the last post unread. I can see the user who posted last time and the date but I have no sign or link or button to take me directly to the last post undread in that thread.
Being in the test phase I have some questions:
1. Why the famous Rin Editor plugin is not compatible with Curves UI? If I choose Rin editor from the theme settings / Editor Style, the editor bar looks like this. All the other styles work well.
L.E. Solved
2. How to permanently remove the red moderation notice on index: "Awaiting Moderation: x unread reports, x unapproved threads, x unapproved posts and x unapproved attachments." ?
3. How can I replace the default black background in header with a custom image?
I solved adding a logo in header by adding on header template:
Code:
<div class="logo"><a href="https://www.mydomain.com/index/"><img src="images/logo.png" /></a></div>but for replacing the black bar with a custom image I have no solution, except removing this entire row from header template and losing the Portal feature:
Code:
<nav class="navbar navbar-dark navbar-expand-lg bg-dark py-4 border-bottom-nav">4. All the unread threads in forums or PM's are shown without bold, like the read ones so it's impossible to distinguish the unread threads. How to bold all the unread threads & PM's in a way to figure out that I have unread posts inside? Maybe I messed something up in global CSS when I changed the colors of the forum...
5. When updating to new versions all my custom modifications in terms of global CSS (custom theme colors) and templates will be reverted to the original ones?
6. When watching the threads in a forum I see no last post button, in order to point me to the last post unread. I can see the user who posted last time and the date but I have no sign or link or button to take me directly to the last post undread in that thread.