Thankd both of you for the answer. Yeah, that seems logic. I forgott about the colapsing part. I may have to stuck with that as it is. It would be only a nice to have (As I had it on Evernote in the last legacy Programm). So, comes new software comes new habits 
Cheers
Urs
OhmineDT-v3.0.0 updates ( 22-FEB-2022 tested on Joplin v2.6.10)
Export PDF Sample: export_pdf_v3.0.0 (22-FEB-2022)
Export HTML Sample: export_html_v3.0.0 (22-FEB-2022)
Thanks for your great theme. I just installed v3.0, but I notice one undesirable change.
Hi! I don't have this problem but I'm checking on it, can you tell me more details? Did you made any change to the source code?
Ok, I think it might related to this line of code:
--switcher-jui-all-note-button-display: flex; /* SHOW: "flex;" | HIDE: "none;" | the top left all notes button */
The default value is flex;. If you want to hide it then set it to "none;" please don't forget the semicolon at the end of the value and double check the spelling. This problem can be recreate while the value is wrong or empty.
For reference: userchrome.css > line 37
No luck yet. I've changed it to be none as follows
--switcher-jui-all-note-button-display: none; /* SHOW: “flex;” | HIDE: "none;" | the top left all notes button */
But there's no change after restarting Joplin.
I haven't made any changes to the source code. I've been using the Ohmine Dark Theme without any issues until now. I'm using Joplin 2.6.10 in Windows 11.
Would you mind to copy all the source code from your userchrome.css and paste it here? Let me test it for you.
Or, you can check this line of code:
/* notebook panel: hiding the "All Notes" button ----------- */
.all-notes {
display: var(--switcher-jui-all-note-button-display) !important;
}
userchrome.css > line 973 to 976
Please make sure it's exactly the same to your userchrome.css, if there is any misspelling would cause the Switcher doesn't work and the format broken.
If it still does not work for you, you better provide me with all the source code within your userchrome.css
userchrome.css (53.2 KB)
I've attached it because it was too big to paste.
Lines 973 to 976 were the same as what you posted, so the issue persists.
Ok, it's finally fixed. Just two problems inside your userchrome.css:
/* and */, if losing one of them, it will cause problem.problem:
--switcher-mde-h1-font-variant: "small-caps;" | OFF: "none;" | */
Fix:
--switcher-mde-h1-font-variant: small-caps; /* ON: "small-caps;" | OFF: "none;" | */
I've fixed it for you, but I don't know why I can't upload the file here. So, you may need to fix it yourself.
Thanks. It's working now.
But I did have to change one other thing to get it to be how I like it.
After I fixed line 31 and 41 the way you suggested, I ended up losing the "All notes" choice altogether--which is not what I wanted.
So I changed the switcher-jui-all-note-button-display: value from none to flex.
Now, it looks perfect without those two unnecessary "blank" lines:
Thanks for all your help. Much appreciated.
Well done! Thank you for supporting OhmineDT! Hope that you enjoy using the new custom elements Key Point too!
I just read the explanation for Key Point. Indeed, I think I'll find it useful for my workflow/writing process. Stick Notes looks useful, too. Thanks!
--math-notation-font-size to root section--inline-code-text-shadow to root section--export-html-background-color to root sectionExport PDF Sample: export_pdf_v3.1.28 (26-FEB-2022)
Export HTML Sample: export_html file_v3.1.28 (26-FEB-2022)
--export-note-title as --export-note-title-text-color
--mt-border-color
--mt-title-background-color
--mt-title-box-shadow
--mt-title-text-color-hover
--mt-title-background-color-hover
--mt-title-box-shadow-hover
--print-mt-link-text-color
--print-mt-title-font-size
OhmineDT-v3.1.40 updates ( 2-MAR-2022 tested on Joplin v2.7.13)
--np-notebook-item-scrollbar-color
--np-note-count-label-text-color
--nlp-list-item-text-color
--nlp-list-item-border-color
--nlp-header-search-bar-placeholder-text-color
--ett-button-icon-color
Not yet, but soon... 
Great ! No stress 
Render Viewer:
Markdown Editor:
Joplin UI:
Source Code: userchrome.css:
--codeblock-text-color.--switcher-mde-horizontal-line-background-color for turn on/off the background color of horizontal line markdown syntax.--hr-background-color.--hr-text-color.--np-notebook-item-text-color: and --np-notebook-item-border-color: are affects to the notelist panel unexpectedly.Source Code: userstyle.css:
--switcher-markdown-toc-position-left You can now position the Markdown TOC button to the left/right.--mt-body-background-color-hover.--mt-body-border-color-hover.--mt-list-border-color.general-body-background-color
--hr-background-gradient
--switcher-markdown-toc-link-text-wrap for the wrap text effect of the markdown toc link text.--mt-link-text-color-hover
--mt-link-background-color-hover