I want to know where does the custom theme settings instance is stored?. I have created several unwanted properties but now I want to remove them.
The following is the setting object when I do print_object($PAGE->theme->settings)
stdClass Object ( [testing1] => Te <-- REMOVE THIS [testing2] => 0 <-- REMOVE THIS [testing3] => <-- REMOVE THIS [headerwidth] => 150 [headerheight] => 150 [version] => 2016071500 )