Well, in the 'el filibusterismo graphic novel', the themes of class struggle are quite prominent. The huge gap between the rich and the poor is shown, and how the poor are constantly oppressed. Additionally, the theme of national identity is there, as the Filipinos try to define themselves against the colonial oppressors.
The 'el filibusterismo graphic novel' mainly focuses on themes like corruption. The corrupt system that exploited the common people is depicted vividly. Also, there is the theme of revolution, as the oppressed masses start to think about overthrowing the unjust regime.