[MacOS] add specialized liquid glass icon especially for dark themes

[acarl005]

Description

This PR updates the MacOS icon to fit with the Liquid Glass style more.

I already got this approved by Peter and Chris.

Linked Issue

This mainly addresses this issue: #8222

The problem we're solving is that the icon doesn't really adapt to the icon style setting in MacOS Tahoe.

Screenshots / Videos

See the 2 icons side-by-side, the current on the left and this new one on the right.

Screen.Recording.2026-05-06.at.11.49.02.AM.mov

Changelog Entries for Stable

CHANGELOG-IMPROVEMENT: [MacOS] New icon to adapt better to "app & widget style" setting in MacOS Tahoe.

[oz-for-oss]

@acarl005

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[oz-for-oss]

Overview

This updates the stable macOS icon assets and Icon Composer configuration for Liquid Glass, including separate light/dark backgrounds and appearance-specific glyph opacity.

Concerns

• No blocking correctness or security concerns found in the annotated diff. The binary image contents are not inspectable from the textual diff, but the PR includes visual evidence for the user-visible icon change.

Verdict

Found: 0 critical, 0 important, 0 suggestions

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[alokedesai]

I'm down to try it, can you make a call out in slack once this is merged for folks to test out the new icon and see what they think? I'm a little iffy on whether I like it or not

[alokedesai]

Could you make sure there's a README or some explanation in the codebase for how this icon was made?