Sorry the IDE is giving you a hard time.
There seems to be a lot of things annoying you here. Perhaps if we could take a calm look at these issues one by one we could:
A) help you avoid them or working around them for the time being
and
B) figure out a way to solve them so they do not frustrate you or other potential users in the future
Are some or all of these issues while using the Form Designer / Property Sheet?
This will end up reformatting the code as it outputs the code in one specific way.
The changes should be minimal however and limited to setting the form or controls properties.
There is also some automatic completion of methods when you start writing e.g.:
bool OnCreate(
Regarding changing values of RGB colors while you're typing them, do you have an example of what code you're writing exactly? I don't think I am familiar with such an issue
Changing windows to 'visible = false' -- this is a strange one as well

Do you have an example?
Hoping we can help alleviate the frustration and improve things!
Cheers,
Jerome