Version 1.6.6 now available.
One fix that you may want to incorporate soon, v1.6.5 downloads the humidity graph every realtime update cycle rather than every 15 minutes (default). The change if you just want to edit your existing file is line 1336, changes from:
if (g_showPopupDataGraphs && g_tipImgs[4][0] !== null) {
to
if (g_refreshGraphs && g_showPopupDataGraphs && g_tipImgs[4][0] !== null) {
Also added Danish and Finnish translations.