Physics/Campaign/UI/UX

Changelog:

PU and U235 resist compression more so yields will change
Fixed single pixel microbombs
Fixed sim speed changing yields
Fixed devises with more than 8 fissile clusters fizzling
fixed neutron leaking out of LID and DU too fast
fixed hot gas not expanding
fixed single particles slowing down or stopping designs
foam should not be as slow anymore
fixed temps and xray readouts reading impossible values
xray chart now shows xrays that have escaped the the device
fusion yield now shows percentage of fusion fuel burned
fixed sim not working after a single broken simulation
added warning for extremely large fissile masses attempting to be simulated.
fixed DT gen not firing on auto targeting
fixed slowdown after neutron firing overrides speed setting

campaign text rewritten
RDS-4 directive yield requirement changed to 15kt
fixed missions only counting if accept was pressed right before a shot
Directive card redone
fixed scroll covering the accept button
first directing now explains that you have to press detonate twice


Added the shape's real size in cm to the draw tooltip.
The board you are working on is saved and comes back after a restart.
Transfer is now called SHARE.
Added Clear all marks and delete under the pointer to the board's right-click menu. The menu lists every tool.
Added Clear guides to the Guide tool.
Radial, Guide and Select show their help.
Added Mirror new points to the Curve tool.
Fixed Hole X and Hole Y making a hole twice the size entered.
Fixed rotated rectangles landing off the grid.
Fixed knobs needing three wheel notches per step.
Added Fill air only to Star Lens and Radial.
Fixed the board jumping or flashing black when switching tools. Added a key to fold the tool options row and a setting to keep it open.
Fixed Ctrl+Z undoing several steps at once and held arrow keys moving a selection too far.
The board draws at full resolution on 1440p and 4K screens.
Fixed the placement tooltip leaving a ghost behind the pointer.
Fixed low-contrast text and the selected speed being hard to see.
Fixed material being placeable after DETONATE was pressed.
Fixed WASD in the detonation viewer acting one key late.
Graphs keep drawing while the window is unfocused.
Fixed the yield readout switching to Mt too early.
A tested design can be saved under a new name.
Long Radio Moscow song titles scroll.
The interface fonts and paper textures ship with the game. Nothing is downloaded at start.
The Kurchatov Institute now warns when your computer is below the recommended specs.
The shot readout, graphs, tool bar and detonation viewer redraw less during a shot.

Update "Helium" is still in the works
coming soon.
Steam Workshop integration, 3d museum and new challenges**


Last version is on previous build in case your game completely breaks

proton users please file a bug report if the sim is crashing again, I will try to fix it. Make sure to include logs