CREATE TABLE table_57204 ("Type of sign" TEXT, "Shape" TEXT, "Border" TEXT, "Background colour" TEXT, "Text/Symbol" TEXT)

What is the color of the background of the white border and sign of information?
SELECT "Background colour" FROM table_57204 WHERE "Border" = 'white' AND "Type of sign" = 'information'
SELECT "Background colour" FROM "table_57204" WHERE "Border" = 'white' AND "Type of sign" = 'information'