We used to show redundant colons almost everywhere. Inside buttons, after labels, after after headings. But then we removed almost all of them from Properties, then largely banished them from Preferences. This has resulted in a cleaner interface. But we still have some left.
This patch removes one type of them: displayed inside buttons with USE_NUMBUTS_LR_ALIGN alignment.
The following is the one place that you are mostly likely to notice any: In the 3DView Sidebar. Left is how it looks now, right is how it looks after this patch:
The colons are not only unnecessary but also make it more difficult to read quickly.
Another, more interesting, place you might see them is with SMPTE time codes. This format contain colons so the automatic formatting of them results in a superfluous trailing one that is confusing. On the following image, top is how it looks now, below is after this patch is applied:
