Default site icon fallback still uses blue logo

[huzaifaalmesbah]

Following 61989, which updated the login logo from blue to gray to match the refreshed design, the default site icon fallback still uses the old blue logo.

When no custom site icon is set, WordPress falls back to the blue logo in embeds and feeds. Updating this fallback to the gray logo would help maintain visual consistency with the updated WordPress design.

Core trac: https://core.trac.wordpress.org/ticket/64877

@huzaifaalmesbah Umm, but it should match the new primary color right?

@nirav7707 I agree with @huzaifaalmesbah. We should follow the existing WordPress core implementation and use the grey color, as seen on the login screen, to maintain consistency.

• Adds a new gray logo in wp-includes/images. (I started with wp-admin/images/wordpress-logo-gray.svg, added a white background, and used Adobe Illustrator to save as PNG.)
• Calls the new image in embed site title link and do_favicon() function.
• Removes custom properties from embed CSS because the variables would not be defined.

Current blue logo

Gray logo

Trac 64877

Use of AI Tools: none

[sabernhardt]

This is outside the scope of the admin redesign, but the fallback logo probably could be changed to gray anyway.

@huzaifaalmesbah @nikunj8866 The grey logo isn’t very visible. While it doesn’t directly impact accessibility, it requires extra effort to notice and could be improved for better visibility. What's your thought on this?

The logo image needs a white background. See #11293.

[audrasjb]

Removing trunk version as this is not going to be shipped with WP 7.0 but in the next releases.

[jamesbregenzer]

Tested locally using the wordpress-develop environment.

Before applying the patch, requests to /favicon.ico redirected to w-logo-blue-white-bg.png and the browser displayed the blue WordPress logo as the fallback site icon.

After applying the patch from ​PR 11293, requests to /favicon.ico redirected to w-logo-gray-white-bg.png and the browser displayed the updated gray logo.

Verified using Firefox Network Inspector and browser UI.

The patch appears to resolve the issue as described.

Before | After

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[westonruter]

In 62521:

Embeds: Replace the blue site icon fallback with the gray WordPress logo.

Adds gray WordPress logo image files (w-logo-gray-white-bg.png and w-logo-gray-white-bg.svg) to wp-includes/images/, and updates the_embed_site_title() and do_favicon() to use the new images as the fallback site icon, maintaining visual consistency with the login screen logo updated in r61989.

Replaces CSS custom property references for focus styles in the embed template (--wp-admin-theme-color and --wp-admin-border-width-focus) with their literal values, as these admin-theme variables are not defined in the oEmbed template context.

Developed in ​https://github.com/WordPress/wordpress-develop/pull/11293.
Follow-up to r61652, r61989, r62502.

Props sabernhardt, huzaifaalmesbah, westonruter, jamesbregenzer.
See #64708.
Fixes #64877.

Committed in r62521 (c710ca6)