wentthefox/forzaroadfinder

Forza Road Finder is a small browser tool that helps players of Forza Horizon 6 spot roads they have not yet driven. In that game, undiscovered roads appear on the in-game map in a specific shade of grey. The tool watches your screen and recolours that exact grey into bright magenta in real time, so the unvisited roads jump out clearly while you are looking at the map. It works by asking the browser to share your screen, the same way a video call shares a window. You pick your Forza Horizon 6 window, and the page draws each captured frame onto a canvas. As it draws, it swaps the target colour for the replacement colour. Nothing about the video, the pixels, or your session is sent anywhere. All of the work happens locally inside your browser. The controls let you start, pause, and stop the capture, save the current processed frame as a PNG, and toggle between native size and a fitted view. You can change the colour it looks for, the colour it paints in, the frame rate from 0.1 up to 30 frames per second, and a tolerance value that allows for small colour shifts caused by video compression. A greyscale checkbox dims the rest of the picture so the highlight stands out. The app also installs as a Progressive Web App, which means after the first visit it keeps working with no internet connection. It runs in any modern Chromium browser such as Chrome or Edge, and in Firefox, as long as the Screen Capture API is supported.