selectedLineBgColor not working

[cj]

Describe the bug
Setting the gui theme options for selectedLineBgColor has no effect.

To Reproduce
This is the same config I have for lazygit:

reporting: "off"
startuppopupversion: 1
gui:
  theme:
    selectedLineBgColor:
      - reverse
    selectedRangeBgColor:
      - reverse

Expected behavior
It should have a white background like lazygit:

Except it looks like:

Desktop (please complete the following information):

• OS: [e.g. Windows]
  Mac
  lazynpm 0.1.4