After Effects template
STEP1
Open Premiere Pro.
Install Transition Border (Mask).prfpset and Transition Border.mogrt(01 Install This folder).
STEP2
Cut 20frames clip and drag and drop Transition Border (Mask).
(Effect-Presets)
STEP3
If you want to use border, add Transition Border on clip.
(Essential Graphics)
1920 * 1080
29.97fps
Duration: 20 Frames
You can use Premiere Pro (Essential Graphics).
You can change colors also.
AEP
1920 x 1080