Re: Background and theme files for gb.highlight

[Benoît Minisini <benoit.minisini@xxxxxxxxxxxxxxxx>]

Le 02/04/2026 à 13:21, Benoît Minisini a écrit :
> Le 02/04/2026 à 12:55, gbWilly a écrit :
> > It came to my attention that Background in a themes file is no longer 
> > applied to my TextEditor control in Gambas 3.21.5
> > This really sucks big time. The application is build in 3.19.6 and 
> > runs fine there shows all as I like and want it.
>  > [...]
>
> The reason of the change is the new syntax highlighting system.
>
> There are three points that must be taken into account:
>
> 1) The TextHighlighterTheme class has now an explicit 'Background' 
> property, that is filled by the "Background" entry of the theme file if 
> it exists.
>
> 2) The TextHighlighterTheme adapts automatically to a dark background 
> unless its 'Adaptive' property is set to FALSE (the old behaviour).
>
> 3) The background color of the TextEditor control is now prioritary, and 
> is applied to the theme when the Theme property is set, so that the 
> theme can adapt to that background color.
>
> So, to get the old behaviour, you should:
>
> - Set the Adaptative property of the theme to FALSE.
> - Save the Background color property of the theme.
> - Assign the theme to the editor.
> - Apply the saved background color to the editor Background property.
>
> If you just apply the theme to the editor, you get the new behaviour: 
> the theme is automatically adapted to the background color of the 
> editor, which is by default the background color chosen by the user for 
> its desktop interface.
>
> Sorry for the inconvenience, and tell me if it works for you.

Hi,

In the last commit on master, the TextHighlighterTheme now takes the 
Background color specified inside a theme, and the TextEditor will use 
it if defined, instead of its Background property. Moreover, in that 
case, no automatic color adaptation is done.

It should restore backward-compatibility. Can you try it and tell me?

If it works, the fix will be backported to the next 3.21.6 version.

Regards,

--
Benoît Minisini.