Re: Highlighting and Background Colour for Source Code

[Christopher Dimech <dimech@gmx.com>]

> Sent: Tuesday, May 11, 2021 at 4:50 PM
> From: "Tim Cross" <theophilusx@gmail.com>
> To: emacs-orgmode@gnu.org
> Subject: Re: Highlighting and Background Colour for Source Code
>
>
> Christopher Dimech <dimech@gmx.com> writes:
>
> > Currently currently handles the highlighting of programming languages through
> > "Code Blocks".  Could org-mode have the capability of highlighting a whole buffer
> > with a particular language highlight typeface.
> >
>
> Sorry, I don't quite understand what exactly your asking for?

Suppose I have an elisp file and I change to org-mode by hitting "M-x org-mode".
The code does not get highlighted because it is not embedded within org-babel
construct.

If I have a programming language file with some org-mode heading commands in it,
and change to org-mode, it would be neat to have language highlighting available.

> > I have also seen that within code blocks, the background is uses a colour that is
> > different from the background colour of the buffer.  Is there a capability that
> > the code block background is set to the buffer background colour.
>
> I think more often than not, this is determined by the Emacs colour
> theme your using. I've noticed that some themes colour src block
> backgrounds differently from the rest of the buffer background and some
> don't. I noticed this because I do like src blocks to have a different
> background and some of the themes I like fail to do this, so I had to
> customize them.

It is certainly useful but not always.  Outline could have a switch, that
toggles between highlight and no-highlight.

> You can try customizing your theme. Have a look at
>
> M-x list-colors-display
>
> to see a list of all the faces being used. Look for ones with your theme
> name or a name which looks like it might be the background face for src
> blocks (you can also see the colours and look for that. Once you have
> made the changes, look at
>
> M-x customize-theme
>
> and save your changes as a new customized theme.
>
>
>
> --
> Tim Cross
>
>