In AppleCommander 1.8.0 on macOS set to dark mode (available in macOS 10.14 and later), if I open a disk image, select a file, click the Export… toolbar button, then click Next >, it asks me to select a destination:

But even after clicking the Browse… button and selecting a destination, the destination field remains empty. Turns out the destination has been selected properly but is being drawn in white text (which is correct for dark mode) on a white background (which is incorrect for dark mode). The destination becomes visible if I select the contents of the field: