Javascript project/multi-file editor for Linux

Question

I'm looking for a GUI editor for a collection of Javascript files, in a folder structure.

Required features:

• Libre
• Gratis
• Shows a tree-like view of elements in a script file - top-level entities, members within objects etc.
• Relatively low memory footprint
• Loads and responds reasonably fast even on somewhat old computers
• Syntax highlighting
• Actively maintained
• Runs on modern Linux distributions

Desired features:

• Can fuzzily lookup definitions of functions in other files, even if their relations is not formally or properly defined (otherwise I'd need it to be a full-fledged IDE with a bunch of complex logic).
• Supports light and dark color schemes
• Can also edit CSS and XML/XHTML/XUL files (with syntax highlighting and fuzzily finding definitions in other files)
• Runs on Windows
• Ongoing development
• Uses native GUI toolkits and doesn't "invent the wheel" UI-wise

Answer 1

CudaText editor (free). It has almost all the needed items. Except

• it has its own UI look
• it cannot find symbols in other JS files. But it can do it for the current file.

It has also the helper for JS coding - plugin Tern, for some intellisense.

Answer 2

I use VS Code and it ticks most of the boxes except for Relatively low memory footprint. If you avoid installing too many plugins, the memory shouldn't be a big deal.