Having the color rose.
Cheerful or optimistic, especially to an excessive degree: took a rose-colored view of the situation.
Through rose-colored glasses With an unduly cheerful, optimistic, or favorable view of things: see the world through rose-colored glasses.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.