tmux/Q/What does the light blue tinge for window logo mean in oh-my-tmux

• in oh-my-tmux aka oh-my-tmux the bottom status line has some conventions for the coloring.
  • ❐ logseq ↑ 51d 5h 14m 0 encode-logseq 1 work-logseq 2 logseq-my-tooling 3 logseq-garden
    • ^^ in the above, 3 logseq-garden is "faint" blue highlight with light blue text against black background, and 1 work-logseq is "bright" blue background with which background text, indicating it's foreground.
    • AFAICT this does not mean that 3 logseq-garden has a command that has issued a terminal bell. I think it means that in the "history order," if I were to "go back" to the prior window, it would be 3 logseq-garden, based only on experimenting with it.

  • AI/Response

    • What the light blue tinge means

      • The "faint blue" styling is the last window indicator, defined by window-status-last-style in tmux. In oh-my-tmux, the theme sets:
        • Last window: light blue text (#00afff) on gray background (#303030) -- the faint/subtle blue tinge
        • Current window: dark text (#080808) on light blue background (#00afff), bold -- the bright blue
      • This confirms the hypothesis: the faint blue marks the most recently visited window before the current one, not a terminal bell indicator.

    • Going back to the last window

      • In oh-my-tmux, <prefix> Tab runs last-window, which jumps back to the faint-blue-highlighted window. This is analogous to vim's Ctrl-^ (Ctrl-6) for switching to the alternate file.

    • Can you go backwards multiple levels like vim's jumplist?

      • No -- tmux does not have a built-in window history stack. The last-window command only tracks one previous window, so <prefix> Tab toggles between two windows rather than walking back through a stack like vim's Ctrl-O / Ctrl-I jumplist.
      • There is no official tmux plugin that provides a full jumplist either. Possible workarounds:
        • 1. Script your own using the after-select-window tmux hook to push window indices onto a stack stored in a tmux environment variable, then bind a key to pop from that stack
        • 2. Use <prefix> w (the interactive window/session tree picker) as a quick way to jump to any window visually
        • 3. Use choose-tree which provides a searchable, navigable tree of sessions and windows