Add visual guidelines

1 files changed, 16 insertions, 0 deletions

diff --git a/2022/prepare.md b/2022/prepare.md
index 415238c4..3603968d 100644
--- a/2022/prepare.md
+++ b/2022/prepare.md
@@ -249,6 +249,22 @@ web conferencing system before November 7.  Please email
 <emacsconf-submit@gnu.org> with some times that might work for you and
 we’ll see if a volunteer can meet up with you to record it.
 
+## Do I need to follow some visual guidelines for the presentation?
+
+- Dark text on a light background is more legible than the opposite
+  (especially for people who are visually impaired); this stands for
+  both your slides and your Emacs theme.  If you use a dark-theme with
+  your Emacs, you can change to a lighter one with `M-x customize-theme`
+  (look for those with a `-light` suffix).
+- If you think your fonts might be too small in your slides or in Emacs,
+  they might very well be.  [You can change the font-size in your
+  Emacs](https://www.emacswiki.org/emacs/SetFonts#h5o-6), but you can
+  also play with the size of the captured window during your recording.
+- Try to minimize the screen-flashes that occur when you switch between
+  windows, especially if their themes do not cohere (light-to-dark and
+  the reverse).  If you can edit your recording, fades and other
+  transitions are a neat solution to this problem.
+
 ## How do I show my keystrokes on screen?
 
 In Emacs, you can use