If I use 16x16 custom service icon, it is displayed correctly in the popup and in the extended popup menu, but it is too small for the 'addthis_button_preferred_X' class when I use 'addthis_32x32_style' class for toolbox.
Contrary If I specify 32x32 custom service icon, it is displayed correctly in the 'addthis_button_preferred_X' class, but it is unscaled (too big) in the popup and extended popup menu.
So either way gives wrong results.
Please fix it forcing custom service icon dimensions to 16x16 for popup and extended popup menu.
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