Customize toolbar graphics shows the chrome toolbar icons

[GeetaSarvadnya]

Description

Found while testing #43213

Customize toolbar graphics shows the chrome toolbar icons

Steps to reproduce

1. Clean profile 1.77.52 CR133
2. Open brave://settings/appearance
3. Click on Customize your toolbar
4. toolbar graphics shows the chrome toolbar icons

Actual result

Customize toolbar graphics shows the chrome toolbar icons

Expected result

Customize toolbar graphics should shows the Brave branded toolbar icons

Reproduces how often

Easily reproduced

Brave version (brave://version info)

Brave	1.77.52 Chromium: 134.0.6998.15 (Official Build) nightly (64-bit)
Revision	d2b1e97cd8ae806f9aa05a0204a9b953536c5bce
OS	Windows 10 Version 22H2 (Build 19045.5487)

Channel information

• release (stable)
• beta
• nightly

Reproducibility

• with Brave Shields disabled
• with Brave Rewards disabled
• in the latest version of Chrome

Miscellaneous information

cc: @brave/qa-team @rebron @emerick

[GeetaSarvadnya]

cc: @aguscruiz

[aguscruiz]

@rebron thinks we should hide that whole preview, but I'm not sure if we're locked in to that decision. Raf, let me know