Don't iterate over a vector to append in a vector
Append a vector instead of 4 items individually
Speedup size grip creation
Speedup drawing of Breeze ButtonsI tested a bit of code with -02 to measure the speed gains of using a std::initializer_list over appending to a temporary and appending to temporary is around 50% slower, so I removed all the code that appened to temporaries for a initializer list in breeze.