fringe-icons are not displayed correctly on Linux

[ptrv]

As the image shows the exclamation mark icon is not shown correctly on Linux.

[swsnr]

Please do M-x ielm, enter (fringe-mode) and paste the output.

[ptrv]

This is the output

((font . "Inconsolata-12")
 (vertical-scroll-bars)
 (background-color . "grey90")
 (background-mode . light)
 (border-color . "grey95")
 (cursor-color . "darkred")
 (foreground-color . "black")
 (mouse-color . "sienna1")
 (left-fringe)
 (right-fringe))

[swsnr]

@ptrv Please try whether M-x fringe-mode RET default and M-x flycheck-buffer fixes the problem.

[ptrv]

Yeah. Setting fringe-mode to default fixes the problem.
Forgot that I had set (fringe-mode 4) to make it smaller.

Thanks.

[swsnr]

I'll close this issue then. I do only support the standard fringe width. I'd like to support more, but that'd mean to define bitmaps for varying fringe widths which is more hassle than its worth.

I'll document that the fringe needs to have 8 pixels width at least.