I thought this Article might be of interest to those who are considering creating their own Themes.

http://help.filemake...tail/a_id/10880

Which makes you wonder why they would put this in the help?

http://www.filemaker...ustom.23.9.html

Oops, sorry, this was a help for v11.

However, the tech article is still worth heeding.

That's just silly. You can customize a theme and apply it to your database; I've done it. Now FileMaker says: don't do it because we may remove support for this in an update.

I thought this Article might be of interest to those who are considering creating their own Themes.

http://help.filemake...tail/a_id/10880

Which makes you wonder why they would put this in the help?

http://www.filemaker...ustom.23.9.html

Oops, sorry, this was a help for v11.

However, the tech article is still worth heeding.

Ahh filemaker strikes again...

What we really wanted was the ability to write (and share) our OWN CSS...

Filemaker.. your such a tease

The FM Help file for creating custom themes is badly out of date. There are other help topics on the web of copying the theme files to another folder, doing some renaming of this-and-that, but not advised.

The other article in OP saying that "Externally created custom themes not supported" is probably true. After copying a theme folder, then opening up a CSS file inside an editor, you will get weird characters inside the file (suggesting there is binary data). I think if you edit those files, they will break the theme and you will not get the results you expect.

The files inside the theme folders, while they look editable, are not. FileMaker has some propietary code inside the files that can only be interpreted by FM Pro (and maybe Server).

The CCS themes are new in FMP 12. The current implementation is causing performance problems. FMI is likely going to change the CSS theme implementation to fix the problems. Any "theme editor" designed for the current theme implementation will likely break when the implementation changes.

Which is likely why FMI itself hasn't issue a theme editor: they are waiting to see how the format performs and what changes are needed to get it up to standard.

This is promising hope they find a solution to this speed problem soon its holding everyone back