Text Background Opacity does not affect scoreboard background

When changing the text background opacity in the chat settings, the scoreboard sidebar stays unaffected, rendering some text colors barely readable. It would be a lot more accessible if the text background setting would also change the scoreboard background (or better, a seperate slider for scoreboards)

Reproduce

• Construct a scoreboard which displays some information.

  /scoreboard objectives add MC-227576 dummy
  /scoreboard objectives setdisplay sidebar MC-227576
  /scoreboard players set @s MC-227576 12345
  

• Set the "Text Background Opacity" chat setting to 100%.
• Type something into the chat and press enter.
• Compare the background opacity of the chat to the information displayed in the scoreboard.
  → Notice how the "Text Background Opacity" setting does not affect the background opacity of the scoreboard overlay.

Expected Result

The setting would affect the opacity of the scoreboard background