Hi — this PR implements a minimal TXML (Trema-style XML) + TSS (Trema Stylesheet) layer that renders to Dear ImGui via jsimgui, per the discussion in issue #53.

What's included

• TXML parser → maps tags like Window, Text, Button, InputText, SliderFloat, Checkbox, Separator to the corresponding ImGui calls.
• TSS parser → basic CSS-like rules for colors and a handful of layout/style props used by those widgets.
• Renderer + widget layer → applies computed styles, handles state, and logs ImGui calls to the console for visibility.
• Security + error handling → input validation, sanitized text/attrs, safe fallbacks; meaningful errors rather than hard failures.
• JSX runtime support → optional: converts simple JSX to TXML for folks who prefer that syntax.

What you can try

• Render the included demos or call renderer.render(txml, tss) in your loop; the ImGui canvas shows live output and logs the generated ImGui JS.

Notes

• Error handling is graceful (safeParse/safeRender); bad inputs don't break the render loop.
• Security defaults are strict, with a test/dev mode toggle to avoid noisy failures during iteration.

Happy to address any feedback and adjust naming, file locations, or boundaries to match project conventions.

References

• Linked request: issue feat/bounty: Port TXML, TSS to jsimgui #53
  feat/bounty: Port TXML, TSS to jsimgui #53