diff --git a/README.md b/README.md
index b0a2244..e0886b7 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
 # minmo
 
-`minmo` is a (min)imal (mo)de-line with aggressive caching and tight semantics.
+`minmo` is a (min)imal (mo)de-line with `O(1)` git and disk status via aggressive caching and tight semantics.
 
 This package exists because I wasn't satisfied either with emacs defaults nor any of the more elaborate alternatives.
 
 Unfortunately the builtin `vc` package tries much too hard to be compatible with obsolete version control systems no one uses, and as a result has poor performance and more limited functionality than if it consolidated on git. `minmo` addresses these problems:
 
-1. `auto-revert-check-vc-info` calls `git status` on *all open vc-enabled buffers*, regardless of their display status. Even on modern hardware, there's a noticeable lag above about 100 open files. `minmo` uses various hooks and the `minmo-git-cache-timer-interval` to update git status only for *visible* buffers, e.g. when calling `switch-to-buffer` or `find-file`.
+1. `auto-revert-check-vc-info` calls `git status` on *all open vc-enabled buffers*, regardless of their display status: essentially `O(N)` cost. Even on modern hardware, there's a noticeable lag above about 100 open files. `minmo` uses various hooks and the `minmo-git-cache-timer-interval` to update git status only for *visible* buffers, e.g. when calling `switch-to-buffer` or `find-file`.
 
 2. The `vc-mode` string reports a generic status designed before the existence of git: namely it doesn't report staged status. Moreover the status strings are clunky and difficult to change.
 
@@ -16,7 +16,7 @@ Both timers can be disabled by setting those intervals to nil, if you want even
 
 ## install
 
-```
+```elisp
 (use-package minmo
   :vc (:url "https://git.bth.moi/bth/minmo" :rev :newest))
 ```
@@ -44,6 +44,14 @@ bottom            ◱◲ : modified/untracked : unready
 
 After a while, you may find them intuitive. But all of this can be changed easily by redefining `minmo-status-alist`. Just copy the default and change strings and faces as you like.
 
+## screenshots
+
+In my own theme, `modus-vivendi`, and `solaris-dark`:
+
+![screenshot](img/redeye.png)
+![screenshot](img/modus-vivendi.png)
+![screenshot](img/solaris-dark.png)
+
 ## mode-line-format
 
 `minmo` sets `mode-line-format` to provide:
@@ -62,7 +70,7 @@ But `mode-line-format` can easily be set as you wish, using the default as a sta
 
 If you wanted an even more minimal mode-line, eval something like this:
 
-```
+```elisp
 (setq-default
  mode-line-format
  (list
@@ -71,3 +79,13 @@ If you wanted an even more minimal mode-line, eval something like this:
   '(:eval (minmo-disk-status))
   ))
 ```
+
+## auto-revert-mode
+
+`global-auto-revert-mode` can still be enabled, but I recommend the following when using `minmo` to avoid unnecesary polling:
+
+```elisp
+(setopt auto-revert-check-vc-info nil
+        auto-revert-use-notify t
+        auto-revert-avoid-polling t)
+```
diff --git a/img/modus-vivendi.png b/img/modus-vivendi.png
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diff --git a/img/redeye.png b/img/redeye.png
new file mode 100644
index 0000000..f0f908b
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diff --git a/img/solaris-dark.png b/img/solaris-dark.png
new file mode 100644
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diff --git a/minmo.el b/minmo.el
index d513005..0144068 100644
--- a/minmo.el
+++ b/minmo.el
@@ -68,6 +68,8 @@
   :group 'convenience
   :prefix "minmo-")
 
+
+
 (defcustom minmo-status-alist
   '(
     (unmodified . (((unicode . "◻") (ascii . ".")) . ((disk . nil) (git . nil))))