The screen is foggy:Micwizard

[chuu2-shakaijin]

Describe the bug

I reported this on Discord a few years ago, but I'll also report it on Github just in case.

The screen is foggy and I can't see it well.
The same problem occurs not only in the desktop version of windows 10, but also in the browser extension of firefox.

Page URL:http://stickpage.com/micwizardplay.shtml

original view (youtube movie)

Expected behavior

Perhaps there is a problem with the drawing order or composition method.

Affected platform

Desktop app

Operating system

windows 10

Browser

Mozilla Firefox 108.0.1

Additional information

No response

[Lord-McSweeney]

This is a missing blend mode problem (missing add, overlay, and invert). As #8262 has just been merged, this problem should be fixed in the next release.