After years of using just the transparency setting found in Options, I have recently discovered the command line option to set a background image. Of particular interest is the mode where it grabs the desktop background to make it look like the window is hardly there at all, like this:
echo -ne '\e]11;=,99\a'
However, I have found that with my multi monitor setup, unless that "primary monitor" is the left most monitor (which it's not since I want the center monitor to be "primary"), and if there is a separate image on each monitor, the image shown on the background is from the mintty window, but from the monitor one position to the left.
Like so:

I suspect this is because the left monitor would have a negative location relative to the primary monitor.
I tried setting the left most monitor as "primary", and then it works properly, but then new windows and notifications don't pop up front and center which interferes with my workflow.
After years of using just the transparency setting found in Options, I have recently discovered the command line option to set a background image. Of particular interest is the mode where it grabs the desktop background to make it look like the window is hardly there at all, like this:

echo -ne '\e]11;=,99\a'However, I have found that with my multi monitor setup, unless that "primary monitor" is the left most monitor (which it's not since I want the center monitor to be "primary"), and if there is a separate image on each monitor, the image shown on the background is from the mintty window, but from the monitor one position to the left.
Like so:
I suspect this is because the left monitor would have a negative location relative to the primary monitor.
I tried setting the left most monitor as "primary", and then it works properly, but then new windows and notifications don't pop up front and center which interferes with my workflow.