In the semi-transparent highlight mode of ZoomIt, there are straight drag traces

Microsoft PowerToys version

0.99

Installation method

PowerToys auto-update

Area(s) with issue?

ZoomIt

Steps to reproduce

✔️ Expected Behavior

半透明高亮模式下，自动将原始扭曲线条修正为笔直线条，仅保留一条笔直的直线。
In semi-transparent highlight mode, the original wavy lines are automatically corrected to straight lines, leaving only a single straight line.

❌ Actual Behavior

半透明高亮模式下，按shift线及Shift + Ctrl 表示箭头线时，线条拉直功能异常：成功生成了笔直的修正线条，但未删除 / 覆盖原始的扭曲线条，最终画面中笔直的新线条 + 原始歪线同时存在、双重显示。
In semi-transparent highlight mode, when Shift line and Shift + Ctrl are used to indicate arrow lines, the line straightening function behaves abnormally: a perfectly straight correction line is successfully generated, but the original bent line is neither deleted nor covered, resulting in both the straight new line and the original bent line being displayed simultaneously, causing double rendering.

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Start by reproducing the issue in ZoomIt 0.99 using semi-transparent highlight mode, Shift for a straight line, and Shift+Ctrl for an arrow. Compare the rendered result with the expected single straight line and identify the ZoomIt drawing entry point responsible for line correction. Done means the original bent trace is no longer displayed alongside the corrected line.