Keep same linear gradient for a longer frame


I am using a linear gradient fill as the background for an Android-Small-size frame (blue to darker blue). However, I am now designing a screen for my app idea that lets the user scroll down, so I made my frame longer for this particular screen. The linear gradient automatically adjusts to the longer frame by making the gradient less steep, but I want the gradient to remain the same as before and add an even darker shade of blue at the end of this longer frame. Is this possible?

Thank you!