change tilix tile border color

[dmkaplan2000]

I use tilix on Ubuntu 22.04.3 LTS with the Ubuntu Gnome Desktop. The desktop is in light theme, but tilix itself is in dark theme. I have a problem that the border of each tile (i.e., each terminal) is black so I cannot see the edge of each tile. In light theme, the border color is a dark gray, so it is perfectly visible, but not in dark theme. I have looked for a way to change the border color, but I cannot find it among the settings. Does anyone know how to set this border color?

Below is a screen capture of the current tilix appearance. Note that the edges of each tile are black and really hard to see. I would like them to be lighter...

[237dmitry]

Set "Theme variant" to "Default". The color of splitters depends on gtk style.

[dmkaplan2000]

If I set "theme variant" to "default", then the entire terminal has a white background (presumably because it inherits the light theme from the gnome desktop). I want a dark terminal window with a somewhat lighter border. Are you saying that the only way to get that is to set the gnome desktop theme to dark, meaning all applications will be in dark theme? I like my terminals dark, but gnome settings and things like that, I prefer the light theme.

[237dmitry]

I don't know what to recommend. I would change the color scheme to make the background a little lighter.

[dmkaplan2000]

That is what I did, but I must admit that I prefer a deep, dark terminal over one that is lightened somewhat. It seems hard to believe that at the desktop level you need to choose to have all applications dark or all applications light, otherwise things just won't look correct...