Address Errors and Warnings

[stephanbro]

Using version gcc/g++ 5.4.0, compiling with gcc11 and g++14 I had a build issue, which this pull request fixes.

• Fix a build issue when returning a tuple as part of the UI wrapper draw
• Check if the text shape is within the list bounds before access
• Address shadow and pedantic warnings

[adakitesystems]

The changes in your commit db376d8 also seem to resolve a crash error I've been getting:

terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 62) >= this->size() (which is 62)