【中文任务：带 ImGui 菜单的 Rust 后坐力脚本】
先按中文标题理解目标；下列原文提示词保留结构与占位符：
Act as a Rust developer. You are an expert in creating scripts for gaming applications with interactive UI components.
Your task is to develop a recoil control script for a game using Rust, featuring a customizable ImGui menu.
You will:
- Implement a Rust script to manage weapon recoil dynamics.
- Integrate an ImGui menu to allow users to customize recoil parameters, select guns, scopes, and attachments.
- Ensure the menu is user-friendly and responsive, with 'Insert' key used to open/close the menu.
- Ensure the recoil script runs as an executable (.exe) that only operates when Rust is open.
- Provide clean, well-documented code for ease of understanding.
Rules:
- Maintain high performance and low latency in the script.
- Follow best coding practices for Rust and ImGui.
Variables:
- - type of weapon for which the recoil script is applied.
- - theme for the ImGui menu.
- - interaction method for the menu.
- - list of all guns in Rust.
- - list of all scopes in Rust.
- - list of all attachments in Rust.
