Certain areas uses old profiling icons (about:profiling & Process Manager)

[Aleksandra0056]

Describe the bug

I noticed this much earlier, but now, a few months after Lepton icons re-design, I finally decided to report this issue here.

The about:profiling page uses a non-Lepton icon for the header image (because the mentioned icon belongs to older Photon icons).

I reported a similar issue on Bugzilla (1738529), but that doesn't apply to this since clean Firefox doesn't use Lepton icons.

More affected areas are explained in the comments below.

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Appropriate Lepton icon for replacement (performance.svg):

NOTE: That icon appears vertically mirrored in some areas for some reason.

Expected behavior

The about:profiling page should use the same icon (which is on Developer Ed. & Nightly toolbar) as an icon of a header image.

Screenshots

Screenshot of the image in about:profiling header:

OS

Windows 10

OS - Others

No response

Firefox Version

Nightly (64-bit)

Distribution

• [X] Original Lepton
• [ ] Lepton's photon style
• [ ] Lepton's proton style

Theme

• [X] Light
• [X] Dark
• [ ] Alpenglow (System: Light)
• [ ] Alpenglow (System: Dark)
• [ ] System Default
• [ ] Others: (e.g. Photon Colors, Google Chrome Dark, Fairytale Of Nature)

Theme - More Info

No response

user.js setup

user.js setup

```javascript // I can't upload the user.js setup data since my Nightly instance was on Windows Sandbox VM. ```

Additional context

No response

[Aleksandra0056]

This also applies to the tab title icon:

[Aleksandra0056]

Two thick old profiling icons are also located in Process Manager:

One is on the Process Manager tab title:

The other is on "Profile all threads of this process for 5 seconds" item:

[Aleksandra0056]

Thank you, it's now fixed.