Here is a short tutorial on how to use Splitcam to add Timer Color Flags to your online Toastmasters meetings.
1–download, install & run Splitcam (Update (5/21/19): The video & steps refer to older version. To download the older Version 8.1.4.1, click here.)
2–in your online meeting app (ie Zoom/RingCentral) choose Splitcam as your camera (instead of the webcam)
3–in the Splitcam dashboard, click on Source > Webcam, then choose your desired webcam & resolution
4–to use the Picture-in-Picture function, click on the PIP Mode box
5–inside of the PIP dashboard (on the bottom half), click on Image, then the [+] button to add the desired image files from your computer
6–in the video window, you can resize the PIP image box
7–if you have added multiple images in PIP, double click on the image desired, and it will show that image
Bonus: Here are the ready-to-use Color Images