Bug: Trace to visualize the path in column view don't work if the app theme is different than system theme

[py-Alexis]

Description

I can only see the trace when in dark mode

It does appear in light mode only very bright colours as background so it's probably only a small coloring issue

and looking at it with a color picker, it seems like there is actually a small difference between the colours
normal background

the selected folder

Steps To Reproduce

turn the theme to light (even closing and reopening Files preview doesn't solve the issue

Requirements

Change the colour for the previous folders in column view

Files Version

2.4.85.0

Windows Version

Windows 10 (22H2): 19045

Log File

The content however appears when I open the settings and does not seem to be related to changing the theme
debug.log

[yaira2]

What happens if you set the app to the default theme, and set the Windows theme to light mode?

[py-Alexis]

OH I had tried that but without relaunching the app
after putting windows theme to light and relaunching the app it works well

[marcelwgn]

I think the easiest way to solve this issue would be to add an event listener for the ActualThemeChanged event so that the ColumnsLayoutPage gets notified of theme changes and can apply them. When the theme changes, we then need to reapply the background using the SetFolderBackground method of that class.