hints to process screenshots. vimbox added lines to arrow drawing bank

reporting/markslider.py

@@ -640,3 +640,9 @@ bc=ansi.code()
 getch=getch()
 opts=setup_options()
 browser(opts,opts.files)
+if opts.screenshots:
+    print("\n\nCrop the images for terminal tabs, and PDFize e.g.:\n- mogrify -chop 0x50 %s/*png\n- convert %s/*png %s.pdf"%(
+            opts.screenshots,
+            opts.screenshots,
+            os.path.basename(opts.screenshots),
+            ))