• Fleet manager - Modified some element widths to prevent clipping text when using bigger font mods.
  
• Planet view - Modified some element widths to prevent clipping text when using bigger font mods.
  
• Planet view - Changed asteroid image to Paradox's larger version.
  
• Ship preview - Added a background to the ship preview element.
  
• Species view - Fixed scrollbar when selecting species appearance.
  
• Small adjustments here and there in regards to text widths.

• Archaeology view - Increased height of leader pool list and moved it to the right of the main window.
  
• Factions view - Fixed height of faction issues list.
  
• Situation log - Further djustments to the buttons.
  
• Small adjustments here and there.

• Situation log - Adjustments to the buttons

• Empire creator - Fixed headers being incorrect.

• Colonization view - Added the new larger planet portrait graphics
  
• Empire creation - New style for planet class window
  
• Leader pool view - Removed trait background -- Wasn't supposed to be there at all.
  
• Planet view - Fixed recruitment and branch building queue list width
  
• Sitation log - Fixed overlapping elements (again)

• MP Gamesetup - Fixed option names being hidden.

• Leader pool view - Increased width to make room for more traits.

• Resettlement view - Fixed disappearing scrollbar (Blame a black hole)
  
• Technology view - Fixed length of description on some elements

• Planet view - Fixed crash happening when using 24 or 66 building slot submods.

• Planet view - Changed the planet/entity portrait sizes: Image[cdn.discordapp.com], Image[cdn.discordapp.com], Image[cdn.discordapp.com]
  Based on the idea from Planetary Diversity.
  
• Planet/entity portraits that didn't fulfill the frame had their portraits redone from the ground up. (Stars, asteroids, habitat, gas giant etc)
  
• Planet view - Modifed the general panel: Image[cdn.discordapp.com]
  
• Leaders view - New xp progress bar.
  
• Situation log - Fixed positions and sizes for some elements, so they don't overlap.

This planet viewer update will make mods that doesn't have high resolution portraits have a black bar above the planet portrait. (Like this: Image[cdn.discordapp.com]).
Planetary Diversity already uses high resolution portraits, so no issues there.
Only thing you can do is ask the creator of the incompatible mod to increase the resolution, as this is the style I'm gonna go for.