docs Update themes.rst: Add some mvNodes constants, reorder constants position.

[nvglucifer]

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name: Pull Request about: Create a pull request to help us improve title: 'docs Update themes.rst: Add some mvNodes constants, reorder constants position.' assignees: ''

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Description: Add some mvNodes constants as it not there in the current docs. Reorder some constants position as they have incremented int on application initialization. And correct some number of components.

Concerning Areas: About reordering some constants position, I see under Core Colors, column#3 and column#2 can be swap, can I edit that also ?