There was a TODO in `crates/settings/src/settings_content/theme.rs` to make this rename. This PR is just splitting off this change from https://github.com/zed-industries/zed/pull/40035 to make reviewing that one a bit easier since that PR is a bit more involved than expected. Release Notes: - N/A Signed-off-by: Connor Tsui <connor.tsui20@gmail.com>