Hi Sharon,

I understand - you want something like a "change tracking mode". I do not really know if you can manually set custom faces on the text of a buffer (you probably can, but I don't know how).

If you use git for version control, I found diff-hl mode (https://github.com/dgutov/diff-hl), which highlights the changes since the last committed version. Maybe this helps? For example:

image.png

Best,
--Diego


On Thu, Aug 6, 2020 at 1:43 PM Sharon Kimble <boudiccas@skimble.plus.com> wrote:
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Thanks for replying Diego.

The text of the book will not be exported into latex or any other
forward-type document. I need the coloured text purely for my own
interest and usage. When, and if, I do export it to latex, LibreOffice
doc or whatever, it will just have the standard coloured text of black
text on a white background. But I need different coloured texts in
org-mode to show me graphically where I added in new text to the book,
and at what stage of the drafting.

For instance - first draft is white text, second draft is lime-green,
third draft is light-blue, fourth draft is pale-red, etc.

So in the above instance I would have white text, lime-green text,
light-blue text, pale-red text, etc ... all in the same document.

Is that clearer?

Thanks
  Sharon.   

Diego Zamboni <diego@zzamboni.org> writes:

> Hi Sharon,
>
> I'm not sure I understand what is it that you are trying to do. But color (or any other visual) is a feature of the exporter you use rather than of Org-mode itself. For example, if you are exporting to HTML, you can use the following
> at the top of the document:
>
> #+html_head_extra: <style>body { color: white; background-color: black; }</style>
>
> For LaTeX export, you should be able to add the correct settings using #+LATEX_HEADER_EXTRA.
>
> Hope this helps,
> --Diego
>
> On Wed, Aug 5, 2020 at 2:37 PM Sharon Kimble <boudiccas@skimble.plus.com> wrote:
>
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>     In a book that I am writing, the text is white on black background which
>     I like. But this is only the first draft, when its ready I shall go onto
>     the second draft and then third draft, as many as necessary to polish
>     the book before it goes to the beta-readers.
>   
>     So the first draft is white text on a black background, is it possible
>     for all the second draft text to be in a different colour that I assign
>     to it? And ditto third draft onwards?
>   
>     I envisage something like setting the text with 'M-x second-draft-text'
>     which will then display the new text with its assigned colour. Which
>     will also mean that the document will have multi-coloured text in it?
>   
>     Is this possible?     
>   
>     And if it is possible, how do I do it please?
>   
>     Thanks
>       Sharon. 
>     - --
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- --
A taste of linux = http://www.sharons.org.uk
TGmeds = http://www.tgmeds.org.uk
DrugFacts = https://www.drugfacts.org.uk
Debian 10.2, fluxbox 1.3.7, emacs 27.1, org 9.3.7
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