NOTE: this is a bug caused by T365764. Flagged by QA in T365383#9895694
NOTE: May be addressed by T366197.
**Steps to replicate the issue** (include links if applicable):
* Visit https://en.wikipedia.beta.wmflabs.org/w/index.php?title=T352930
* Click edit
* Insert image
**What happens?**:
Certain icons are invisible
{F55327171}
{F55327280}
{F55327282}
{F55328822}
{F55329906}
{F55329927}
{F55329932}
{F55330009}
{F55330038}
{F55330046}
**What should have happened instead?**:
Icons should be visible.
**Software version** (on `Special:Version` page; skip for WMF-hosted wikis like Wikipedia):
**Other information** (browser name/version, screenshots, etc.):
**Additional QA**
AC2: Repeat test for inserting a template workflow.
AC3: Repeat test for inserting a link.
AC4: Repeat test for inserting citations
AC5: Repeat test for save workflow
AC6: Repeat test for "show changes" workflow with visual diff.