zulip/web/templates/settings/emoji_settings_tip.hbs

{{#if is_guest}}
    <div class='tip'>{{t "Guests cannot edit custom emoji." }}</div>
{{else if (eq realm_add_custom_emoji_policy policy_values.by_admins_only.code) }}
    <div class='tip'>{{t "This organization is configured so that only administrators can add custom emoji." }}</div>
{{else if (eq realm_add_custom_emoji_policy policy_values.by_moderators_only.code)}}
    <div class='tip'>{{t 'This organization is configured so that administrators and moderators can add custom emoji.'}}</div>
{{else if (eq realm_add_custom_emoji_policy policy_values.by_full_members.code)}}
    <div class='tip'>{{t 'This organization is configured so that full members can add custom emoji.'}}</div>
{{else}}
    <div class='tip'>{{t "This organization is configured so that any member of this organization can add custom emoji." }}</div>
{{/if}}