[FEATURE] Terrain Type display on mouse hover

[grrussel]

I can't keep track in my head what each shade of blue means with respect to the terrain; I'd like to see that in the UI somewhere (in UFO, it was easier, the colours are more distinct and there were less terrain types?)

The point is that some terrains make battle easier or harder, and it would be nice to know if now is a good time to down that USO, or if I should wait a bit more.

[SupSuper]

That wouldn't help, they're random.

Code: [Select]

  textures:
    - id: 0
      terrain:
        - name: SEABED
          weight: 75
        - name: CORAL
          weight: 25
    - id: 1
      terrain:
        - name: PIPES
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 2
      terrain:
        - name: PLANE
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 3
      terrain:
        - name: ATLAN
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 4
      terrain:
        - name: MU
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 5
      terrain:
        - name: GAL
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 6
      terrain:
        - name: MSUNK
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 7
      terrain:
        - name: VOLC
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 8
      terrain:
        - name: CORAL
          weight: 75
        - name: SEABED
          weight: 25
    - id: 9
      terrain:
        - name: VOLC
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 10
      terrain:
        - name: MSUNK
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 11
      terrain:
        - name: PIPES
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25
    - id: 12
      terrain:
        - name: MU
          weight: 50
        - name: SEABED
          weight: 25
        - name: CORAL
          weight: 25