wordplay - Rematry oshkabus

I just got another picture in the mail, and can't for the life of me piece together why I've been getting such unusual letters...

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^{To make things easier for colourblind solvers: the second panel is #FF7F50, the fourth panel is #008080 and the bottom numbers/arrow are #FF0000.}

Answer

Each of the rebus works as follows:

A string X is derived from the rebus itself, and a string Y from the overall typesetting (font size, color etc) of the rebus. The answer is then X placed inside Y, since the image literally shows X in (the style) Y. The cute figures below each of the top four images act as definitions for the answer, allowing us to confirm our answers as we progress.

Rebus #1:

The rebus is L IN DF written in BOLD, so the answer is BLINDFOLD.

Rebus #2:

P OR E in CORAL giving CORPOREAL.

Rebus #3:

T IF IC in ARIAL giving ARTIFICIAL.

Rebus #4:

E TO T in TEAL, giving TEETOTAL.

And there's more!

As hinted by the numbers below, we can take the 3rd, 7th, 7th and 4th letters of these answers to form a new rebus:

So the final answer is:

CT IF IE in RED, giving RECTIFIED.