[OS X TeX] TexShop not syntax coloring some .tex files

[Berend Hasselman]

On 06-03-2015, at 17:57, Herbert Schulz <herbs at wideopenwest.com> wrote:

>> 
>> On Mar 6, 2015, at 10:37 AM, Berend Hasselman <bhh at xs4all.nl> wrote:
>> 
>> 
>>> On 06-03-2015, at 17:24, Herbert Schulz <herbs at wideopenwest.com> wrote:
>>> 
>>> Howdy,
>>> 
>>> Ok... so some .tex files are syntax colored upon opening but most aren't when opening in TeXShop (3.50).
>>> 
>>> Is there any difference between those that are and those that aren't? Do all of the files have extension .tex? 
>>> 
>> 
>> Not that I can see.
>> All file have extension .tex
>> 
>> Berend
> 
> Howdy,
> 
> Sorry if I seem as though I'm pressing but I'd love to tighten the conditions when this occurs. Are you always Double Clicking the files to open them? Is it always the same files that DO have syntax coloring when you open them? Is TeXShop already running when you open the files? 
> 

The method of opening the files makes no difference at all for the syntax colouring.

Another way  of getting the syntax the colouring to show is to resize the window.
I tried this following the replies by Richard Seguin and Josep Maria Font.
So now I have three ways to get the colouring to show.

Berend

BTW: I’m doing all of this on OS X Mavericks on a Macbook Air 11.6 inch.