Colored multizeta values in positive characteristic

In this paper, we study Shen-Shi's colored multizeta values in positive characteristic, which are generalizations of multizeta values in positive characteristic by Thakur. We establish their fundamental properties, that include their non-vanishingness, sum-shuffle relations, $t$-motivic interpretation and linear independence. In particular, for the linear independence results, we prove that there are no nontrivial $\overline{k}$-linear relations among the colored multizeta values of different weights.