H opens/closes the GUI. Hold D to delete your drawing. Use Turbowarp for a better experience. https://turbowarp.org/988489942?turbo&hqpen&stuck or https://turbowarp.org/988489942?turbo&stuck
This is my work, but feel free to help me by designing a more intuitive and user-friendly GUI. V2.0 Added Colors and BG Colors, as well as adjustable advanced settings such as refresh rate and border strength. Added exports. Added a basic GUI.