I have custom field on theme settings. I get default_value for that field from .info file and that's OK. I change the value of that field and submit the form and get a changed value but I do not want it. I want, after submitting form the value of that field will be changed but in that field the value will be showing the default_value from .info file. How could I do that.
If I've understood right you should implement next steps to achieve your goal:
- Take a look at drupal_parse_info_file() function to get a value from .info file.
- Alter your form and set appropriate value to
#default_valueproperty whithin your field.