Top panel - font and alignment
In the top panel, the font of "Show overview" is not set properly, as it seems. It looks different between Safari and Chrome. From a quick lookup, it says it's 'FontAwesome', for both browsers. This is different than the menu font, 'Lato'.
In the top panel, the tick boxes next to 'Legend' and 'Comments' are not aligned to the middle of the text.