Blue Sky White Sun
The Blue Sky White Sun (青天白日) serves as the design for the party flag and emblem of the Kuomintang, the flag of the Republic of China, the national emblem of the Republic of China, and as the naval jack of the ROC Navy.
青天白日 should be understood in a different way. First and most importantly, the real meaning is not in the 'color of 青', as explained in 林語堂:青天 [qing1tian1], n., (1) the clear, blue sky: 青天白日 in broad daylight; (2) as symbol of justice: 重見青天 regain freedom, freed from prison; formerly, address to judge: 青天大人. 青天白日, in the true sense of the word, was referring to the dark and oppressive rule of the Manchus; Dr.Sun Yet Sen, a revolutioary and one of the original designers of the flag, was fighting for freedom, the freedom of fresh sky and clear sun.
In the "Blue Sky White Sun" symbol, the twelve rays of the white Sun representing the twelve months and the twelve traditional Chinese hours (時辰), each of which corresponds to two modern hours (小時) and symbolizes the spirit of progress.
The Blue Sky White Sun flag was originally designed by Lu Hao-tung, a "martyr" of the Xinhai revolution.