I just tried to compile package control-center-1.4.0.5-83 with the
GNU C compiler.

It said

render-background.c:130: warning: operation on "pixels" may be undefined

The source code is

        line[i] = *(pixels++) + *(pixels++) + *(pixels++);

I agree with the compiler. This is undefined C code. Suggest new code

        line[i] = pixels[ 0] + pixels[ 1] + pixels[ 2];
        pixels += 3;