# Migrate periscope2 applications to v0.2.0

## Objective

Explain the steps to migrate a periscope2 generated applications with periscope2 prior to v0.2.0 to use new/updated features of periscope2 v0.2.0

## Header Navbar

- Now the header is divided into 3 elements:
  - Working in progress element
  - Header title
  - UI elements as menu bar
- New functions params:
  - ui_elements
  - ui_position
  - title: it will override the title param in set_app_parameters function in program/global.R
  - title position
- CSS changes This update to be added to already created apps

    .periscope-busy-ind {
        height: 100%;
        display: inline-flex;
        align-items: center;
    }

## periscope_style.yaml

- Now periscope_style can be generated directly from theme configuration addin Add-ins
- The generated file now contains bootstrap 4 variables names directly to be able to manage all available variables
- The following variables will be the same:
  - primary, secondary, success, info, warning, danger, light and dark
- The following are the mapping between old periscope_style.yaml file keys and new used keys:
  - sidebar_width -> sidebar_width
  - sidebar_horizontal_padding -> sidebar_padding_x
  - sidebar_vertical_padding ->sidebar_padding_y
  - sidebar_mini_width -> sidebar_mini_width
  - right_sidebar_width -> control_sidebar_width
  - main_content_horizontal_padding -> “content-padding-x”
  - main_content_vertical_padding -> “content-padding-y”
  - main_background_color ->“main-bg”
  - sidebar_background_color -> bg
  - sidebar_background_hover_color -> hover_bg
  - sidebar_hover_color -> hover_color
  - sidebar_color -> color
  - sidebar_active_color -> active_color
  - submenu_background_color -> submenu_bg
  - submenu_color -> submenu_color
  - submenu_hover_color -> submenu_hover_color
  - submenu_background_hover_color -> submenu_hover_bg
  - submenu_active_color -> submenu_active_color
  - submenu_active_background_color -> submenu_active_bg
  - header_color -> “navbar-light-color”
  - button_background_color -> “button-default-background-color”
  - button_color -> “button-default-color”
  - button_border_color -> “button-default-border-color”
- Use theme configuration addin Add-ins to generate a periscope_style.yaml file with the above keys

## periscope Alert

In generated applications change: - `periscope2::createAlert` to only `createPSAlert` with the same parameters