thats normal and has 0 consequence to your game. red warning only mean it shares the datas between the parts.
Mods turn red when they contain code that affects the same thing - it doesn't mean they are uncompatible. Since MegaMod 8 contains <abbr title="Colonial Charter">CC</abbr> 1.75, you don't need to use a separate <abbr title="Colonial Charter">CC</abbr> 1.75 - you are only going to make the game take even longer to load. You should uncheck <abbr title="Colonial Charter">CC</abbr> 1.75 from the mod list. Don't forget that anytime you add or delete mods, you should exit Banished completely before starting a new game in order to avoid crashes.
But you don't need <abbr title="Colonial Charter">CC</abbr> and MegaMod, because <abbr title="Colonial Charter">CC</abbr> is included in it.