int get_channel_signal(unsigned channel);
bool get_supports_set_wb(unsigned channel);
void set_wb(unsigned channel, float r, float g, float b);
+ void set_wb_for_signal(int signal, float r, float g, float b);
movit::RGBTriplet get_white_balance_for_signal(int signal);
std::string get_channel_color(unsigned channel);
void register_class(const char *class_name, const luaL_Reg *funcs, EffectType effect_type = NO_EFFECT_TYPE);
int set_theme_menu(lua_State *L);
Chain get_chain_from_effect_chain(movit::EffectChain *effect_chain, unsigned num, const InputState &input_state);
+ void call_lua_wb_callback(unsigned channel, float r, float g, float b);
std::string theme_path;