Add visual feedback flash on copy

[yilmazer]

Feature Request

Description

Add a brief visual highlight/flash effect when text is copied, similar to tmux's copy-mode behavior.

Current Behavior

When using copy-on-select = clipboard, selected text remains highlighted until clicked.

Desired Behavior

After copying text (either via copy-on-select or manual copy keybinding):

• Selected text briefly flashes/highlights (e.g., 200-500ms)
• Then the selection returns to normal/disappears
• Provides visual confirmation that the copy was successful

Proposed Configuration

Enable copy flash feedback

Use Case

This provides immediate visual feedback that text was successfully copied to clipboard, similar to tmux's copy-mode. It's a subtle UX improvement that confirms the copy action without requiring the selection to remain highlighted.

References

• tmux copy-mode flash behavior
• Similar to vim's visual mode yank feedback

[mitchellh]

I generally like this idea. Should this trigger only for manual clipboard actions or any clipboard actions (e.g. if a terminal program sends contents to your clipboard)? I think making the config a packed struct so we can have alternate notifications in the future make sense too.

e.g.

visual-copy = flash

Open to ideas.

[yilmazer]

Hi Mitchell, Thank you for your feedback. I would prefer visual feedback for both manual and other clipboard actions.