Selection box in LibreOffice Calc is invisible when using light theme

### What Happened?

It's hard to use LibreOffice Calc because selection box is blends into the background.

### Steps to Reproduce

1. Set one of default elementary OS themes
2. Turn on light mode
3. Open LibreOffice Calc
4. Select cell with cursor

### Expected Behavior

Selection box and dot at the bottom right corner should be more visible, not white. Here's how it works in dark mode and another GTK theme:

### OS Version

6.x (Odin)

### Software Version

Latest release (I have run all updates)

### Log Output

_No response_

### Hardware Info

_No response_