The drop-down dialog buttons used in AutoFilters are not native UI widgets; we draw them - and we provide the graphic. It seems that graphic has not changed for the past 20 years, if not more, when screen resolution was half what it is typically these days. Now, a more fundamental solution would probably be to use native widgets somehow (bug 163017) - but in the mean time, we should at least: * Increase the resolution of the button images * Apply a bit of anti-aliasing and perhaps even: * Make the images VCL-dependent to sort-of-emulate actual native widgets. although just the first two would be an improvement.
Created attachment 202465 [details] Autofilter drop-down dialogs - notice the buttons with the downward triangular arrow
Created attachment 203254 [details] Arrow button on PivotTable controls - LO 26.2 nightly Screenshot illustrates what our current situation is; and it ain't pretty - literally: * Aliasing / low resolution * Inappropriate foreground color * Inappropriate background color * Solid backround square rendered in wrong place * The 3 horizontal lines look very much out of place.