ALTER TABLE display_preferences ADD COLUMN compose_font_family TEXT NOT NULL DEFAULT 'system';
ALTER TABLE display_preferences ADD COLUMN reply_position TEXT NOT NULL DEFAULT 'above';
ALTER TABLE display_preferences ADD COLUMN quote_style TEXT NOT NULL DEFAULT 'standard';
ALTER TABLE display_preferences ADD COLUMN forward_mode TEXT NOT NULL DEFAULT 'inline';
ALTER TABLE display_preferences ADD COLUMN spellcheck_enabled INTEGER NOT NULL DEFAULT 1;