Canvas still injected even if trails are off

[Cqoicebordel]

In 1.5.5 from the store, it looks like the canvas is still injected even if all the drawing options are turned off (trail+action+text).

It shouldn't be important, except for 2 reasons :

• I use the "Dark Reader" extension (with "static" setting), which invert a lot of colors, including the canvas when I start a mouse gesture, blacking out the whole screen. It's not a big bug, but it's annoying, especially since I have a tendency to start a gesture before finishing reading the page.
• By trying to debug it, I saw that there was code to handle that case, but it didn't seem to work, and that bothered me. In particular, that snippet

content_scripts.ts:133
if ( ! this.option.isTrailOn()) {
    return;
}

When debugging, I saw that Chrome didn't go inside the if, even if ! this.option.isTrailOn() was true when typed in the console.

I don't know typescript, and I'm almost a noob about extensions, so I'm not sure what is the issue. Maybe this particular snippet gets removed when "compiling" it ? I have no idea.

In any case, I have created a workaround for myself, by setting the canvas z-index to -10000. That's good enough for me right now, but I thought you should know.