diplomacy_foreign_special_1010_court_visit_outcome_preview_effect

diplomacy_foreign_special_1010_court_visit_outcome_preview_effect = {
	show_as_tooltip = {
		$CHARACTER$ = {
			random_list = {
				1 = {
					show_chance = no
					desc = diplomacy_foreign_special.1017.great
					
					root = {
						reverse_add_opinion = {
							target = $CHARACTER$
							modifier = friendliness_opinion
							opinion = 30
						}
						if = {
							limit = { $CHARACTER$ = scope:target_list_member_a }
							custom_tooltip = diplomacy_foreign_special.1017.friends_a
						}
						else_if = {
							limit = { $CHARACTER$ = scope:target_list_member_b }
							custom_tooltip = diplomacy_foreign_special.1017.friends_b			
						}
						else = {
							custom_tooltip = diplomacy_foreign_special.1017.friends_c
						}
						add_diplomacy_lifestyle_perk_points = 1
					}
				}
				1 = {
					show_chance = no
					desc = diplomacy_foreign_special.1017.good

					root = {
						diplomacy_foreign_special_1010_court_visit_outcome_good_effect = { CHARACTER = $CHARACTER$ }
					}
				}
				1 = {
					show_chance = no
					desc = diplomacy_foreign_special.1017.bad

					root = {
						diplomacy_foreign_special_1010_court_visit_outcome_bad_effect = { CHARACTER = $CHARACTER$ }
					}
				}
			}
		}
	}

}

As written in game/common/scripted_effects/00_diplomacy_lifestyle_effects.txt.