# 📊 2.1 Written description of the program using modelling tools

Check if Expanded (Default).
Check if Collapsed.

Retrieve ViewModels list from solutions explorer viewmodels folder.
Check if Home
Check if Tweaks
Check if Startup
Check if Docs

Change Panel ViewModel to Selected Navigating Item.
(Changes Pages)

Check if Enabled.
Check if Disabled.
Check saved tweak config.
Retrieve tweak information.
Retrieve tweak config.

Display Tweak Information to Tweak panel.
Display tweak state on tweak status grid.
Display saved Tweak config to Tweak panel.

Tweak Enabled Flag
Selected Tweak ID

Retrieve tweaks registry changes.
Apply registry changes.
Update Tweak state.
Update Tweak State Log file.

Tweak changes applied.
Display Tweak State (enabled) on tweak status grid.

Tweak Disabled Flag
Selected Tweak ID

Retrieve tweaks registry changes.
Rollback tweaks registry changes.
Update Tweak state.
Update Tweak State Log file.

Tweak changes Rolledback.
Display tweak State (Disabled) on tweak status grid.

Restore Defaults
(Singular Tweak)

Retrieve Default tweak config from Defaults Log file.
Retrieve Default tweak State from Defaults Log file.
Update Tweak state.
Apply Default tweaks registry changes.

Tweak changes Reset.
Display tweak State ([Default]) on tweak status grid.
Disable Restore Defaults button for tweak.

Restore Defaults
(All Tweaks)

Retrieve Default tweaks config file.
Replace Saved tweak config/state file contents with Default tweak config/state contents.

All Tweak changes Reset.
Display tweak States ([Default]) on tweak status grid.
Disable Restore Defaults button for page control.

Retrieve Program ID from Startup Detect Module.
Retrieve Program Information from Startup Detect Module.
Retrieve Program Startup State.

Highlight Startup Entry Row.
Update Selected App Value.

Check startup source from Program Information.
Apply Required changes.
Update App State.
Update Startup State Log file.

Startup for app Enabled.
Displayed App State is updated to Enabled.

Check startup source from Program Information.
Apply Required changes.
Update App State.
Update Startup State Log file.

Startup for app Disabled.
Displayed App State is updated to Disabled.

Check if Dark
Check if Light