Why dark backgrounds help: The text on the result table is light/cream colored. A dark background (brown wall, cliff, building interior) gives the highest contrast for OCR. Bright sky or sunlit landscapes wash out the text edges.

If chat is already in your screenshot: Use any image editor (Paint.NET, Photopea, MS Paint) to draw a solid black rectangle over the chat area, edge-to-edge, fully opaque. Chat fragments at the edges still get detected, so cover completely.

Things to avoid behind the table: other players' nameplates, NPCs/mobs, chat boxes (open or translucent), damage numbers, party/alliance UI panels, minimap overlays. All of these can leak text into the OCR.

The bot auto-fixes: chat punctuation (brackets/colons/commas), AFK players with all-zero stats, lone digits in narrow columns, and column leakage. You only need to handle the obvious cases above.