Now base::lambda can be copied and can wrap any immutable lambda.
For mutable lambdas there is base::lambda_once (which you're
supposed to call only once to pass data through lambda captures,
for example by using std::unique_ptr). Generally base::lambda is
passed by value and base::lambda_once is passed by rvalue reference.
Minimal height of the message text fixed to prevent bubble collapsing.
FileDialog filter is (*) instead of (*.*) for Linux and macOS.
Explicitly setting text color in Settings user name painting.
