Paste a session SID, tweak the controls, then click Load Widget to (re)mount the widget with the current configuration. The generated snippet on the right always reflects the current state of the controls and is copy-paste ready.
Session
Edit the controls freely — click Load Widget to apply your changes.
Bubble
Empty = icon-only bubble.
Position
Theme (light)
Dark / High-Contrast
High-contrast activates when you select high-contrast in the Mode switcher, or when the OS reports forced-colors: active.