Context: Though still predominantly green, post-2004 series incorporate other colors to better distinguish different denominations. As a result of a 2008 decision in an accessibility lawsuit filed by the American Council of the Blind, the Bureau of Engraving and Printing is planning to implement a raised tactile feature in the next redesign of each note, except the $1 and the version of the $100 bill already in process. It also plans larger, higher-contrast numerals, more color differences, and distribution of currency readers to assist the visually impaired during the transition period.

Question: What color was predominantly used?
Answer: green

Question: Which organization filed an accessibility lawsuit?
Answer: American Council of the Blind

Question: Other than the $100 bill, which other note is not going to be redesigned?
Answer: $1

Question: Who are currency readers meant to assist?
Answer: visually impaired

Question: The redesign of notes is being planned by which organization?
Answer: Bureau of Engraving and Printing

Question: What color was rarely used?
Answer: Unanswerable

Question: Which organization filed a numeral lawsuit?
Answer: Unanswerable

Question: Other than the $2 bill, which other note is not going to be redesigned?
Answer: Unanswerable

Question: Who are transition periods meant to assist?
Answer: Unanswerable

Question: The transition period is being planned by which organization?
Answer: Unanswerable