(defun beacon--color-range ()
"Return a list of background colors for the beacon."
- (let* ((default-bg (or (background-color-at-point)
+ (let* ((default-bg (or (save-excursion
+ (unless (eobp)
+ (forward-line 1)
+ (unless (or (bobp) (not (bolp)))
+ (forward-char -1)))
+ (background-color-at-point))
(face-background 'default)))
(bg (color-values (if (string-match "\\`unspecified-" default-bg)
(face-attribute 'beacon-fallback-background :background)
default-bg)))
(fg (cond
((stringp beacon-color) (color-values beacon-color))
- ((< (color-distance "black" bg)
- (color-distance "white" bg))
+ ((and (stringp bg)
+ (< (color-distance "black" bg)
+ (color-distance "white" bg)))
(make-list 3 (* beacon-color 65535)))
(t (make-list 3 (* (- 1 beacon-color) 65535))))))
(apply #'seq-mapn (lambda (r g b) (format "#%04x%04x%04x" r g b))