Add theme support option to disable gradient picker

[markhowellsmead]

In the same way that there is an option add_theme_support('disable-custom-colors');.

[spacedmonkey]

Related: #18171 #17774

[talldan]

It looks like this was added as an experimental feature only very recently:
5e68cdc#diff-bda1f53deac273d361a56c63a5b90adeR157

@jorgefilipecosta Any further info the reporter should be aware of for this issue?

[jorgefilipecosta]

Hi @markhowellsmead, as @talldan referred this feature is now available in an experimental state.
It is possible to completely disable gradients using:

add_theme_support( '__experimental-editor-gradient-presets', array() );
add_theme_support( '__experimental-disable-custom-gradients', true );
```.

Thank you for reporting this issue!

[markhowellsmead]

Great! Thanks @jorgefilipecosta!

[Ahrengot]

For anyone wondering why the above snippet no longer works. It's been changed to:

add_theme_support('editor-gradient-presets', []);
add_theme_support('disable-custom-gradients', true);

Not sure when that happened, but removing the __experimental- prefix works for me using WordPress 5.4

[jorgefilipecosta]

Hi @Ahrengot, thank you for sharing the new code, since the original discussion the APIs were stabilized and now the experimental prefix should not be used.

[ooksanen]

These don't seem to work with the latest plugin. Functions as expected when plugin is disabled.

[EmSixTeen]

For anyone wondering why the above snippet no longer works. It's been changed to:

add_theme_support('editor-gradient-presets', []);
add_theme_support('disable-custom-gradients', true);

Not sure when that happened, but removing the __experimental- prefix works for me using WordPress 5.4

Want this too and just tried this, but doesn't seem to be working here - with or without the current Gutenberg (13.3.0) plugin.

A little disconcerting if this isn't just user error on my part but is instead just something else that's now defunct.

[markhowellsmead]

This option is now best controlled using the theme.json file. https://fullsiteediting.com/lessons/theme-json-color-options/#h-how-to-disable-gradients

[EmSixTeen]

I don't particularly want to convert my sites to using theme.json just to disable gradients, especially when the option was already previously there.

[markhowellsmead]

Then I'd suggest opening a new ticket to address the fact that the following theme support definitions don't work for you. (This ticket has been closed since December 2019.)

add_theme_support('editor-gradient-presets', []);
add_theme_support('disable-custom-gradients', true);

[via-lars]

@EmSixTeen did you open a new ticket? which?

Apart from disbabling gradients not working for me without theme.json I noticed disabled colors are still delivered as CSS variables inline in HTML wp-head global-styles-inline-css